Repository Public Research preview
1{2 "schema": 1,3 "observed_at": "2026-11-10T04:57:46.537Z",4 "api_version_probed": "2026-10-21 (SDK default) and 2023-06-01 (legacy probes)",5 "sources": {6 "behaviour": "Live Messages API probes (probes/probe.mjs, probes/probe2.mjs)",7 "pricing": "https://platform.claude.com/docs/en/about-claude/pricing (read 2026-11-09)",8 "models": "GET /v1/models"9 },10 "notes": [11 "Mythos models are not visible to the probing key and are absent.",12 "Behaviour can change: call list_models / refresh with scripts in probes/ before relying on an edge case."13 ],14 "models": {15 "claude-sonnet-5": {16 "id": "claude-sonnet-5",17 "alias": null,18 "display_name": "Claude Sonnet 5",19 "tier": "sonnet",20 "released": "2026-06-29T00:00:00Z",21 "max_input_tokens": 1000000,22 "max_output_tokens": 128000,23 "pricing_usd_per_mtok": {24 "input": 2,25 "cache_write_5m": 2.5,26 "cache_write_1h": 4,27 "cache_read": 0.2,28 "output": 10,29 "batch_input": 1,30 "batch_output": 5,31 "fast": null,32 "long_prompt": null33 },34 "thinking": {35 "adaptive": true,36 "budget_tokens": false,37 "disabled": "accepted",38 "between_tools": false,39 "disabled_blocked_at_effort": [],40 "display_updates_beta": true41 },42 "effort": {43 "supported": true,44 "levels": [45 "low",46 "medium",47 "high",48 "xhigh",49 "max"50 ]51 },52 "sampling_params": {53 "api_2026_10_21": false,54 "api_2023_06_01": false55 },56 "forced_tool_choice": true,57 "assistant_prefill": false,58 "mid_conversation_system": true,59 "structured_outputs": true,60 "task_budget_beta": true,61 "compaction_beta": true,62 "context_editing_beta": true,63 "server_fallbacks_beta": true,64 "fast_mode": "unsupported",65 "inference_geo": true,66 "server_tools": {67 "web_search_20260209": true,68 "web_search_20250305": true,69 "web_fetch_20260209": true,70 "code_execution_20260521": true,71 "tool_search": true72 },73 "client_tools": {74 "memory_20250818": true,75 "bash_20250124": true,76 "text_editor_20250728": true77 },78 "citations": true,79 "count_tokens": true,80 "capabilities": {81 "batch": {82 "supported": true83 },84 "citations": {85 "supported": true86 },87 "code_execution": {88 "supported": true89 },90 "context_management": {91 "supported": true,92 "clear_tool_uses_20250919": {93 "supported": true94 },95 "clear_thinking_20251015": {96 "supported": true97 },98 "compact_20260112": {99 "supported": true100 }101 },102 "effort": {103 "supported": true,104 "low": {105 "supported": true106 },107 "medium": {108 "supported": true109 },110 "high": {111 "supported": true112 },113 "xhigh": {114 "supported": true115 },116 "max": {117 "supported": true118 }119 },120 "image_input": {121 "supported": true122 },123 "pdf_input": {124 "supported": true125 },126 "server_tools": {127 "supported": true,128 "code_execution": {129 "supported": true130 },131 "web_search": {132 "supported": true133 }134 },135 "structured_outputs": {136 "supported": true137 },138 "thinking": {139 "supported": true,140 "types": {141 "enabled": {142 "supported": false143 },144 "adaptive": {145 "supported": true146 },147 "disabled": {148 "supported": true149 },150 "between_tools": {151 "supported": false152 }153 }154 }155 },156 "observed_errors": {157 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",158 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",159 "temperature": "temperature: Extra inputs are not permitted",160 "top_p": "top_p: Extra inputs are not permitted",161 "top_k": "top_k: Extra inputs are not permitted",162 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",163 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-sonnet-5",164 "speed_fast": "'claude-sonnet-5' does not support the `speed` parameter. This feature is only available on supported models.",165 "legacy_temperature": "`temperature` is deprecated for this model.",166 "legacy_top_p": "`top_p` is deprecated for this model.",167 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",168 "fast_beta": "'claude-sonnet-5' does not support the `speed` parameter. This feature is only available on supported models."169 }170 },171 "claude-sonnet-5-5": {172 "id": "claude-sonnet-5-5",173 "alias": null,174 "display_name": "Claude Sonnet 5.5",175 "tier": "sonnet",176 "released": "2026-09-28T00:00:00Z",177 "max_input_tokens": 1000000,178 "max_output_tokens": 128000,179 "pricing_usd_per_mtok": {180 "input": 2,181 "cache_write_5m": 2.5,182 "cache_write_1h": 4,183 "cache_read": 0.1,184 "output": 10,185 "batch_input": 1,186 "batch_output": 5,187 "fast": null,188 "long_prompt": null189 },190 "thinking": {191 "adaptive": true,192 "budget_tokens": false,193 "disabled": "use_between_tools",194 "between_tools": true,195 "disabled_blocked_at_effort": [],196 "display_updates_beta": true197 },198 "effort": {199 "supported": true,200 "levels": [201 "low",202 "medium",203 "high",204 "xhigh",205 "max"206 ]207 },208 "sampling_params": {209 "api_2026_10_21": false,210 "api_2023_06_01": false211 },212 "forced_tool_choice": false,213 "assistant_prefill": false,214 "mid_conversation_system": true,215 "structured_outputs": true,216 "task_budget_beta": true,217 "compaction_beta": true,218 "context_editing_beta": true,219 "server_fallbacks_beta": true,220 "fast_mode": "unsupported",221 "inference_geo": true,222 "server_tools": {223 "web_search_20260209": true,224 "web_search_20250305": true,225 "web_fetch_20260209": true,226 "code_execution_20260521": true,227 "tool_search": true228 },229 "client_tools": {230 "memory_20250818": true,231 "bash_20250124": true,232 "text_editor_20250728": true233 },234 "citations": true,235 "count_tokens": true,236 "capabilities": {237 "batch": {238 "supported": true239 },240 "citations": {241 "supported": true242 },243 "code_execution": {244 "supported": true245 },246 "context_management": {247 "supported": true,248 "clear_tool_uses_20250919": {249 "supported": true250 },251 "clear_thinking_20251015": {252 "supported": true253 },254 "compact_20260112": {255 "supported": true256 }257 },258 "effort": {259 "supported": true,260 "low": {261 "supported": true262 },263 "medium": {264 "supported": true265 },266 "high": {267 "supported": true268 },269 "xhigh": {270 "supported": true271 },272 "max": {273 "supported": true274 }275 },276 "image_input": {277 "supported": true278 },279 "pdf_input": {280 "supported": true281 },282 "server_tools": {283 "supported": true,284 "code_execution": {285 "supported": true286 },287 "web_search": {288 "supported": true289 }290 },291 "structured_outputs": {292 "supported": true293 },294 "thinking": {295 "supported": true,296 "types": {297 "enabled": {298 "supported": false299 },300 "adaptive": {301 "supported": true302 },303 "disabled": {304 "supported": false305 },306 "between_tools": {307 "supported": true308 }309 }310 }311 },312 "observed_errors": {313 "thinking_disabled": "To turn thinking off on this model, send \"thinking\": {\"type\": \"between_tools\"} instead of {\"type\": \"disabled\"}. The model does not think before responding. The short updates it writes between tool calls come back as thinking blocks.",314 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",315 "disabled_at_xhigh": "To turn thinking off on this model, send \"thinking\": {\"type\": \"between_tools\"} instead of {\"type\": \"disabled\"}. The model does not think before responding. The short updates it writes between tool calls come back as thinking blocks.",316 "temperature": "temperature: Extra inputs are not permitted",317 "top_p": "top_p: Extra inputs are not permitted",318 "top_k": "top_k: Extra inputs are not permitted",319 "tool_any": "tool_choice: type \"tool\" and \"any\" are not supported for this model.",320 "tool_forced": "tool_choice: type \"tool\" and \"any\" are not supported for this model.",321 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",322 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-sonnet-5-5",323 "speed_fast": "'claude-sonnet-5-5' does not support the `speed` parameter. This feature is only available on supported models.",324 "legacy_temperature": "`temperature` is deprecated for this model.",325 "legacy_top_p": "`top_p` is deprecated for this model.",326 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",327 "fast_beta": "'claude-sonnet-5-5' does not support the `speed` parameter. This feature is only available on supported models."328 }329 },330 "claude-haiku-5-5": {331 "id": "claude-haiku-5-5",332 "alias": null,333 "display_name": "Claude Haiku 5.5",334 "tier": "haiku",335 "released": "2026-10-07T18:00:00Z",336 "max_input_tokens": 1000000,337 "max_output_tokens": 128000,338 "pricing_usd_per_mtok": {339 "input": 0.1,340 "cache_write_5m": 0.125,341 "cache_write_1h": 0.2,342 "cache_read": 0.01,343 "output": 0.5,344 "batch_input": 0.05,345 "batch_output": 0.25,346 "fast": null,347 "long_prompt": {348 "threshold_input_tokens": 100000,349 "prices": [350 0.5,351 0.625,352 1,353 0.05,354 2.5355 ]356 }357 },358 "thinking": {359 "adaptive": true,360 "budget_tokens": false,361 "disabled": "accepted",362 "between_tools": false,363 "disabled_blocked_at_effort": [364 "xhigh",365 "max"366 ],367 "display_updates_beta": true368 },369 "effort": {370 "supported": true,371 "levels": [372 "low",373 "medium",374 "high",375 "xhigh",376 "max"377 ]378 },379 "sampling_params": {380 "api_2026_10_21": false,381 "api_2023_06_01": false382 },383 "forced_tool_choice": true,384 "assistant_prefill": false,385 "mid_conversation_system": true,386 "structured_outputs": true,387 "task_budget_beta": true,388 "compaction_beta": true,389 "context_editing_beta": true,390 "server_fallbacks_beta": true,391 "fast_mode": "unsupported",392 "inference_geo": true,393 "server_tools": {394 "web_search_20260209": true,395 "web_search_20250305": true,396 "web_fetch_20260209": true,397 "code_execution_20260521": true,398 "tool_search": true399 },400 "client_tools": {401 "memory_20250818": true,402 "bash_20250124": true,403 "text_editor_20250728": true404 },405 "citations": true,406 "count_tokens": true,407 "capabilities": {408 "batch": {409 "supported": true410 },411 "citations": {412 "supported": true413 },414 "code_execution": {415 "supported": true416 },417 "context_management": {418 "supported": true,419 "clear_tool_uses_20250919": {420 "supported": true421 },422 "clear_thinking_20251015": {423 "supported": true424 },425 "compact_20260112": {426 "supported": true427 }428 },429 "effort": {430 "supported": true,431 "low": {432 "supported": true433 },434 "medium": {435 "supported": true436 },437 "high": {438 "supported": true439 },440 "xhigh": {441 "supported": true442 },443 "max": {444 "supported": true445 }446 },447 "image_input": {448 "supported": true449 },450 "pdf_input": {451 "supported": true452 },453 "server_tools": {454 "supported": true,455 "code_execution": {456 "supported": true457 },458 "web_search": {459 "supported": true460 }461 },462 "structured_outputs": {463 "supported": true464 },465 "thinking": {466 "supported": true,467 "types": {468 "enabled": {469 "supported": false470 },471 "adaptive": {472 "supported": true473 },474 "disabled": {475 "supported": true476 },477 "between_tools": {478 "supported": false479 }480 }481 }482 },483 "observed_errors": {484 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",485 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",486 "disabled_at_xhigh": "output_config.effort 'xhigh' is not supported when thinking is disabled on this model. Use effort 'high' or below, or enable thinking.",487 "temperature": "temperature: Extra inputs are not permitted",488 "top_p": "top_p: Extra inputs are not permitted",489 "top_k": "top_k: Extra inputs are not permitted",490 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",491 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-haiku-5-5",492 "speed_fast": "'claude-haiku-5-5' does not support the `speed` parameter. This feature is only available on supported models.",493 "legacy_temperature": "`temperature` is deprecated for this model.",494 "legacy_top_p": "`top_p` is deprecated for this model.",495 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",496 "fast_beta": "'claude-haiku-5-5' does not support the `speed` parameter. This feature is only available on supported models."497 }498 },499 "claude-opus-5-5": {500 "id": "claude-opus-5-5",501 "alias": null,502 "display_name": "Claude Opus 5.5",503 "tier": "opus",504 "released": "2026-09-21T16:24:00Z",505 "max_input_tokens": 1000000,506 "max_output_tokens": 128000,507 "pricing_usd_per_mtok": {508 "input": 4,509 "cache_write_5m": 5,510 "cache_write_1h": 8,511 "cache_read": 0.2,512 "output": 20,513 "batch_input": 2,514 "batch_output": 10,515 "fast": {516 "input": 8,517 "output": 40518 },519 "long_prompt": null520 },521 "thinking": {522 "adaptive": true,523 "budget_tokens": false,524 "disabled": "rejected",525 "between_tools": false,526 "disabled_blocked_at_effort": [],527 "display_updates_beta": true528 },529 "effort": {530 "supported": true,531 "levels": [532 "low",533 "medium",534 "high",535 "xhigh",536 "max"537 ]538 },539 "sampling_params": {540 "api_2026_10_21": false,541 "api_2023_06_01": false542 },543 "forced_tool_choice": false,544 "assistant_prefill": false,545 "mid_conversation_system": true,546 "structured_outputs": true,547 "task_budget_beta": true,548 "compaction_beta": true,549 "context_editing_beta": true,550 "server_fallbacks_beta": true,551 "fast_mode": "ga",552 "inference_geo": true,553 "server_tools": {554 "web_search_20260209": true,555 "web_search_20250305": true,556 "web_fetch_20260209": true,557 "code_execution_20260521": true,558 "tool_search": true559 },560 "client_tools": {561 "memory_20250818": true,562 "bash_20250124": true,563 "text_editor_20250728": true564 },565 "citations": true,566 "count_tokens": true,567 "capabilities": {568 "batch": {569 "supported": true570 },571 "citations": {572 "supported": true573 },574 "code_execution": {575 "supported": true576 },577 "context_management": {578 "supported": true,579 "clear_tool_uses_20250919": {580 "supported": true581 },582 "clear_thinking_20251015": {583 "supported": true584 },585 "compact_20260112": {586 "supported": true587 }588 },589 "effort": {590 "supported": true,591 "low": {592 "supported": true593 },594 "medium": {595 "supported": true596 },597 "high": {598 "supported": true599 },600 "xhigh": {601 "supported": true602 },603 "max": {604 "supported": true605 }606 },607 "image_input": {608 "supported": true609 },610 "pdf_input": {611 "supported": true612 },613 "server_tools": {614 "supported": true,615 "code_execution": {616 "supported": true617 },618 "web_search": {619 "supported": true620 }621 },622 "structured_outputs": {623 "supported": true624 },625 "thinking": {626 "supported": true,627 "types": {628 "enabled": {629 "supported": false630 },631 "adaptive": {632 "supported": true633 },634 "disabled": {635 "supported": false636 },637 "between_tools": {638 "supported": false639 }640 }641 }642 },643 "observed_errors": {644 "thinking_disabled": "\"thinking.type.disabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",645 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",646 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",647 "disabled_at_xhigh": "\"thinking.type.disabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",648 "temperature": "temperature: Extra inputs are not permitted",649 "top_p": "top_p: Extra inputs are not permitted",650 "top_k": "top_k: Extra inputs are not permitted",651 "tool_any": "tool_choice: type \"tool\" and \"any\" are not supported for this model.",652 "tool_forced": "tool_choice: type \"tool\" and \"any\" are not supported for this model.",653 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",654 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-opus-5-5",655 "legacy_temperature": "`temperature` is deprecated for this model.",656 "legacy_top_p": "`top_p` is deprecated for this model.",657 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message."658 }659 },660 "claude-opus-4-8": {661 "id": "claude-opus-4-8",662 "alias": null,663 "display_name": "Claude Opus 4.8",664 "tier": "opus",665 "released": "2026-05-28T00:00:00Z",666 "max_input_tokens": 1000000,667 "max_output_tokens": 128000,668 "pricing_usd_per_mtok": {669 "input": 5,670 "cache_write_5m": 6.25,671 "cache_write_1h": 10,672 "cache_read": 0.5,673 "output": 25,674 "batch_input": 2.5,675 "batch_output": 12.5,676 "fast": {677 "input": 10,678 "output": 50679 },680 "long_prompt": null681 },682 "thinking": {683 "adaptive": true,684 "budget_tokens": false,685 "disabled": "accepted",686 "between_tools": false,687 "disabled_blocked_at_effort": [],688 "display_updates_beta": true689 },690 "effort": {691 "supported": true,692 "levels": [693 "low",694 "medium",695 "high",696 "xhigh",697 "max"698 ]699 },700 "sampling_params": {701 "api_2026_10_21": false,702 "api_2023_06_01": false703 },704 "forced_tool_choice": true,705 "assistant_prefill": false,706 "mid_conversation_system": true,707 "structured_outputs": true,708 "task_budget_beta": true,709 "compaction_beta": true,710 "context_editing_beta": true,711 "server_fallbacks_beta": true,712 "fast_mode": "beta_header_required",713 "inference_geo": true,714 "server_tools": {715 "web_search_20260209": true,716 "web_search_20250305": true,717 "web_fetch_20260209": true,718 "code_execution_20260521": true,719 "tool_search": true720 },721 "client_tools": {722 "memory_20250818": true,723 "bash_20250124": true,724 "text_editor_20250728": true725 },726 "citations": true,727 "count_tokens": true,728 "capabilities": {729 "batch": {730 "supported": true731 },732 "citations": {733 "supported": true734 },735 "code_execution": {736 "supported": true737 },738 "context_management": {739 "supported": true,740 "clear_tool_uses_20250919": {741 "supported": true742 },743 "clear_thinking_20251015": {744 "supported": true745 },746 "compact_20260112": {747 "supported": true748 }749 },750 "effort": {751 "supported": true,752 "low": {753 "supported": true754 },755 "medium": {756 "supported": true757 },758 "high": {759 "supported": true760 },761 "xhigh": {762 "supported": true763 },764 "max": {765 "supported": true766 }767 },768 "image_input": {769 "supported": true770 },771 "pdf_input": {772 "supported": true773 },774 "server_tools": {775 "supported": true,776 "code_execution": {777 "supported": true778 },779 "web_search": {780 "supported": true781 }782 },783 "structured_outputs": {784 "supported": true785 },786 "thinking": {787 "supported": true,788 "types": {789 "enabled": {790 "supported": false791 },792 "adaptive": {793 "supported": true794 },795 "disabled": {796 "supported": true797 },798 "between_tools": {799 "supported": false800 }801 }802 }803 },804 "observed_errors": {805 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",806 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",807 "temperature": "temperature: Extra inputs are not permitted",808 "top_p": "top_p: Extra inputs are not permitted",809 "top_k": "top_k: Extra inputs are not permitted",810 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",811 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-opus-4-8",812 "speed_fast": "To use the `speed` parameter with 'claude-opus-4-8', send the `anthropic-beta: fast-mode-2026-02-01` header.",813 "legacy_temperature": "`temperature` is deprecated for this model.",814 "legacy_top_p": "`top_p` is deprecated for this model.",815 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message."816 }817 },818 "claude-opus-5": {819 "id": "claude-opus-5",820 "alias": null,821 "display_name": "Claude Opus 5",822 "tier": "opus",823 "released": "2026-07-24T00:00:00Z",824 "max_input_tokens": 1000000,825 "max_output_tokens": 128000,826 "pricing_usd_per_mtok": {827 "input": 5,828 "cache_write_5m": 6.25,829 "cache_write_1h": 10,830 "cache_read": 0.5,831 "output": 25,832 "batch_input": 2.5,833 "batch_output": 12.5,834 "fast": {835 "input": 10,836 "output": 50837 },838 "long_prompt": null839 },840 "thinking": {841 "adaptive": true,842 "budget_tokens": false,843 "disabled": "accepted",844 "between_tools": false,845 "disabled_blocked_at_effort": [846 "xhigh",847 "max"848 ],849 "display_updates_beta": true850 },851 "effort": {852 "supported": true,853 "levels": [854 "low",855 "medium",856 "high",857 "xhigh",858 "max"859 ]860 },861 "sampling_params": {862 "api_2026_10_21": false,863 "api_2023_06_01": false864 },865 "forced_tool_choice": true,866 "assistant_prefill": false,867 "mid_conversation_system": true,868 "structured_outputs": true,869 "task_budget_beta": true,870 "compaction_beta": true,871 "context_editing_beta": true,872 "server_fallbacks_beta": true,873 "fast_mode": "beta_header_required",874 "inference_geo": true,875 "server_tools": {876 "web_search_20260209": true,877 "web_search_20250305": true,878 "web_fetch_20260209": true,879 "code_execution_20260521": true,880 "tool_search": true881 },882 "client_tools": {883 "memory_20250818": true,884 "bash_20250124": true,885 "text_editor_20250728": true886 },887 "citations": true,888 "count_tokens": true,889 "capabilities": {890 "batch": {891 "supported": true892 },893 "citations": {894 "supported": true895 },896 "code_execution": {897 "supported": true898 },899 "context_management": {900 "supported": true,901 "clear_tool_uses_20250919": {902 "supported": true903 },904 "clear_thinking_20251015": {905 "supported": true906 },907 "compact_20260112": {908 "supported": true909 }910 },911 "effort": {912 "supported": true,913 "low": {914 "supported": true915 },916 "medium": {917 "supported": true918 },919 "high": {920 "supported": true921 },922 "xhigh": {923 "supported": true924 },925 "max": {926 "supported": true927 }928 },929 "image_input": {930 "supported": true931 },932 "pdf_input": {933 "supported": true934 },935 "server_tools": {936 "supported": true,937 "code_execution": {938 "supported": true939 },940 "web_search": {941 "supported": true942 }943 },944 "structured_outputs": {945 "supported": true946 },947 "thinking": {948 "supported": true,949 "types": {950 "enabled": {951 "supported": false952 },953 "adaptive": {954 "supported": true955 },956 "disabled": {957 "supported": true958 },959 "between_tools": {960 "supported": false961 }962 }963 }964 },965 "observed_errors": {966 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",967 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",968 "disabled_at_xhigh": "output_config.effort 'xhigh' is not supported when thinking is disabled on this model. Use effort 'high' or below, or enable thinking.",969 "temperature": "temperature: Extra inputs are not permitted",970 "top_p": "top_p: Extra inputs are not permitted",971 "top_k": "top_k: Extra inputs are not permitted",972 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",973 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-opus-5",974 "speed_fast": "To use the `speed` parameter with 'claude-opus-5', send the `anthropic-beta: fast-mode-2026-02-01` header.",975 "legacy_temperature": "`temperature` is deprecated for this model.",976 "legacy_top_p": "`top_p` is deprecated for this model.",977 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message."978 }979 },980 "claude-opus-4-7": {981 "id": "claude-opus-4-7",982 "alias": null,983 "display_name": "Claude Opus 4.7",984 "tier": "opus",985 "released": "2026-04-14T00:00:00Z",986 "max_input_tokens": 1000000,987 "max_output_tokens": 128000,988 "pricing_usd_per_mtok": {989 "input": 5,990 "cache_write_5m": 6.25,991 "cache_write_1h": 10,992 "cache_read": 0.5,993 "output": 25,994 "batch_input": 2.5,995 "batch_output": 12.5,996 "fast": null,997 "long_prompt": null998 },999 "thinking": {1000 "adaptive": true,1001 "budget_tokens": false,1002 "disabled": "accepted",1003 "between_tools": false,1004 "disabled_blocked_at_effort": [],1005 "display_updates_beta": true1006 },1007 "effort": {1008 "supported": true,1009 "levels": [1010 "low",1011 "medium",1012 "high",1013 "xhigh",1014 "max"1015 ]1016 },1017 "sampling_params": {1018 "api_2026_10_21": false,1019 "api_2023_06_01": false1020 },1021 "forced_tool_choice": true,1022 "assistant_prefill": false,1023 "mid_conversation_system": false,1024 "structured_outputs": true,1025 "task_budget_beta": true,1026 "compaction_beta": true,1027 "context_editing_beta": true,1028 "server_fallbacks_beta": true,1029 "fast_mode": "unsupported",1030 "inference_geo": true,1031 "server_tools": {1032 "web_search_20260209": true,1033 "web_search_20250305": true,1034 "web_fetch_20260209": true,1035 "code_execution_20260521": true,1036 "tool_search": true1037 },1038 "client_tools": {1039 "memory_20250818": true,1040 "bash_20250124": true,1041 "text_editor_20250728": true1042 },1043 "citations": true,1044 "count_tokens": true,1045 "capabilities": {1046 "batch": {1047 "supported": true1048 },1049 "citations": {1050 "supported": true1051 },1052 "code_execution": {1053 "supported": true1054 },1055 "context_management": {1056 "supported": true,1057 "clear_tool_uses_20250919": {1058 "supported": true1059 },1060 "clear_thinking_20251015": {1061 "supported": true1062 },1063 "compact_20260112": {1064 "supported": true1065 }1066 },1067 "effort": {1068 "supported": true,1069 "low": {1070 "supported": true1071 },1072 "medium": {1073 "supported": true1074 },1075 "high": {1076 "supported": true1077 },1078 "xhigh": {1079 "supported": true1080 },1081 "max": {1082 "supported": true1083 }1084 },1085 "image_input": {1086 "supported": true1087 },1088 "pdf_input": {1089 "supported": true1090 },1091 "server_tools": {1092 "supported": true,1093 "code_execution": {1094 "supported": true1095 },1096 "web_search": {1097 "supported": true1098 }1099 },1100 "structured_outputs": {1101 "supported": true1102 },1103 "thinking": {1104 "supported": true,1105 "types": {1106 "enabled": {1107 "supported": false1108 },1109 "adaptive": {1110 "supported": true1111 },1112 "disabled": {1113 "supported": true1114 },1115 "between_tools": {1116 "supported": false1117 }1118 }1119 }1120 },1121 "observed_errors": {1122 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",1123 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",1124 "temperature": "temperature: Extra inputs are not permitted",1125 "top_p": "top_p: Extra inputs are not permitted",1126 "top_k": "top_k: Extra inputs are not permitted",1127 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",1128 "mid_system": "role 'system' is not supported on this model",1129 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-opus-4-7",1130 "speed_fast": "'claude-opus-4-7' does not support the `speed` parameter. This feature is only available on supported models.",1131 "legacy_temperature": "`temperature` is deprecated for this model.",1132 "legacy_top_p": "`top_p` is deprecated for this model.",1133 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",1134 "fast_beta": "'claude-opus-4-7' does not support the `speed` parameter. This feature is only available on supported models."1135 }1136 },1137 "claude-haiku-4-5-20251001": {1138 "id": "claude-haiku-4-5-20251001",1139 "alias": "claude-haiku-4-5",1140 "display_name": "Claude Haiku 4.5",1141 "tier": "haiku",1142 "released": "2025-10-15T00:00:00Z",1143 "max_input_tokens": 200000,1144 "max_output_tokens": 64000,1145 "pricing_usd_per_mtok": {1146 "input": 1,1147 "cache_write_5m": 1.25,1148 "cache_write_1h": 2,1149 "cache_read": 0.1,1150 "output": 5,1151 "batch_input": 0.5,1152 "batch_output": 2.5,1153 "fast": null,1154 "long_prompt": null1155 },1156 "thinking": {1157 "adaptive": false,1158 "budget_tokens": true,1159 "disabled": "accepted",1160 "between_tools": false,1161 "disabled_blocked_at_effort": [],1162 "display_updates_beta": false1163 },1164 "effort": {1165 "supported": false,1166 "levels": []1167 },1168 "sampling_params": {1169 "api_2026_10_21": false,1170 "api_2023_06_01": true1171 },1172 "forced_tool_choice": true,1173 "assistant_prefill": true,1174 "mid_conversation_system": false,1175 "structured_outputs": true,1176 "task_budget_beta": false,1177 "compaction_beta": false,1178 "context_editing_beta": true,1179 "server_fallbacks_beta": true,1180 "fast_mode": "unsupported",1181 "inference_geo": false,1182 "server_tools": {1183 "web_search_20260209": false,1184 "web_search_20250305": true,1185 "web_fetch_20260209": false,1186 "code_execution_20260521": true,1187 "tool_search": true1188 },1189 "client_tools": {1190 "memory_20250818": true,1191 "bash_20250124": true,1192 "text_editor_20250728": true1193 },1194 "citations": true,1195 "count_tokens": true,1196 "capabilities": {1197 "batch": {1198 "supported": true1199 },1200 "citations": {1201 "supported": true1202 },1203 "code_execution": {1204 "supported": false1205 },1206 "context_management": {1207 "supported": true,1208 "clear_tool_uses_20250919": {1209 "supported": true1210 },1211 "clear_thinking_20251015": {1212 "supported": true1213 },1214 "compact_20260112": {1215 "supported": false1216 }1217 },1218 "effort": {1219 "supported": false,1220 "low": {1221 "supported": false1222 },1223 "medium": {1224 "supported": false1225 },1226 "high": {1227 "supported": false1228 },1229 "xhigh": {1230 "supported": false1231 },1232 "max": {1233 "supported": false1234 }1235 },1236 "image_input": {1237 "supported": true1238 },1239 "pdf_input": {1240 "supported": true1241 },1242 "server_tools": {1243 "supported": true,1244 "code_execution": {1245 "supported": true1246 },1247 "web_search": {1248 "supported": true1249 }1250 },1251 "structured_outputs": {1252 "supported": true1253 },1254 "thinking": {1255 "supported": true,1256 "types": {1257 "enabled": {1258 "supported": true1259 },1260 "adaptive": {1261 "supported": false1262 },1263 "disabled": {1264 "supported": true1265 },1266 "between_tools": {1267 "supported": false1268 }1269 }1270 }1271 },1272 "observed_errors": {1273 "thinking_adaptive": "adaptive thinking is not supported on this model",1274 "thinking_adaptive_summarized": "adaptive thinking is not supported on this model",1275 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",1276 "effort_low": "This model does not support the effort parameter.",1277 "effort_medium": "This model does not support the effort parameter.",1278 "effort_high": "This model does not support the effort parameter.",1279 "effort_xhigh": "This model does not support the effort parameter.",1280 "effort_max": "This model does not support the effort parameter.",1281 "disabled_at_xhigh": "This model does not support the effort parameter.",1282 "temperature": "temperature: Extra inputs are not permitted",1283 "top_p": "top_p: Extra inputs are not permitted",1284 "top_k": "top_k: Extra inputs are not permitted",1285 "mid_system": "role 'system' is not supported on this model",1286 "web_search_2026": "'claude-haiku-4-5-20251001' does not support programmatic tool calling. The following tools have `allowed_callers` that require it: web_search. Explicitly set `allowed_callers=[\"direct\"]` on these tools, or use a model that supports programmatic tool calling.",1287 "max_tokens_over_cap": "max_tokens: 500000 > 64000, which is the maximum allowed number of output tokens for claude-haiku-4-5-20251001",1288 "speed_fast": "'claude-haiku-4-5-20251001' does not support the `speed` parameter. This feature is only available on supported models.",1289 "inference_geo_us": "'claude-haiku-4-5-20251001' does not support inference_geo.",1290 "task_budget": "This model does not support user-configurable task budgets.",1291 "compaction": "'claude-haiku-4-5-20251001' does not support the 'compact_20260112' context management strategy.",1292 "fast_beta": "'claude-haiku-4-5-20251001' does not support the `speed` parameter. This feature is only available on supported models.",1293 "display_updates": "adaptive thinking is not supported on this model",1294 "web_fetch_2026": "'claude-haiku-4-5-20251001' does not support programmatic tool calling. The following tools have `allowed_callers` that require it: web_fetch. Explicitly set `allowed_callers=[\"direct\"]` on these tools, or use a model that supports programmatic tool calling."1295 }1296 },1297 "claude-sonnet-4-5-20250929": {1298 "id": "claude-sonnet-4-5-20250929",1299 "alias": "claude-sonnet-4-5",1300 "display_name": "Claude Sonnet 4.5",1301 "tier": "sonnet",1302 "released": "2025-09-29T00:00:00Z",1303 "max_input_tokens": 200000,1304 "max_output_tokens": 64000,1305 "pricing_usd_per_mtok": {1306 "input": 3,1307 "cache_write_5m": 3.75,1308 "cache_write_1h": 6,1309 "cache_read": 0.3,1310 "output": 15,1311 "batch_input": 1.5,1312 "batch_output": 7.5,1313 "fast": null,1314 "long_prompt": null1315 },1316 "thinking": {1317 "adaptive": false,1318 "budget_tokens": true,1319 "disabled": "accepted",1320 "between_tools": false,1321 "disabled_blocked_at_effort": [],1322 "display_updates_beta": false1323 },1324 "effort": {1325 "supported": false,1326 "levels": []1327 },1328 "sampling_params": {1329 "api_2026_10_21": false,1330 "api_2023_06_01": true1331 },1332 "forced_tool_choice": true,1333 "assistant_prefill": true,1334 "mid_conversation_system": false,1335 "structured_outputs": true,1336 "task_budget_beta": false,1337 "compaction_beta": false,1338 "context_editing_beta": true,1339 "server_fallbacks_beta": true,1340 "fast_mode": "unsupported",1341 "inference_geo": false,1342 "server_tools": {1343 "web_search_20260209": true,1344 "web_search_20250305": true,1345 "web_fetch_20260209": true,1346 "code_execution_20260521": true,1347 "tool_search": true1348 },1349 "client_tools": {1350 "memory_20250818": true,1351 "bash_20250124": true,1352 "text_editor_20250728": true1353 },1354 "citations": true,1355 "count_tokens": true,1356 "capabilities": {1357 "batch": {1358 "supported": true1359 },1360 "citations": {1361 "supported": true1362 },1363 "code_execution": {1364 "supported": true1365 },1366 "context_management": {1367 "supported": true,1368 "clear_tool_uses_20250919": {1369 "supported": true1370 },1371 "clear_thinking_20251015": {1372 "supported": true1373 },1374 "compact_20260112": {1375 "supported": false1376 }1377 },1378 "effort": {1379 "supported": false,1380 "low": {1381 "supported": false1382 },1383 "medium": {1384 "supported": false1385 },1386 "high": {1387 "supported": false1388 },1389 "xhigh": {1390 "supported": false1391 },1392 "max": {1393 "supported": false1394 }1395 },1396 "image_input": {1397 "supported": true1398 },1399 "pdf_input": {1400 "supported": true1401 },1402 "server_tools": {1403 "supported": true,1404 "code_execution": {1405 "supported": true1406 },1407 "web_search": {1408 "supported": true1409 }1410 },1411 "structured_outputs": {1412 "supported": true1413 },1414 "thinking": {1415 "supported": true,1416 "types": {1417 "enabled": {1418 "supported": true1419 },1420 "adaptive": {1421 "supported": false1422 },1423 "disabled": {1424 "supported": true1425 },1426 "between_tools": {1427 "supported": false1428 }1429 }1430 }1431 },1432 "observed_errors": {1433 "thinking_adaptive": "adaptive thinking is not supported on this model",1434 "thinking_adaptive_summarized": "adaptive thinking is not supported on this model",1435 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",1436 "effort_low": "This model does not support the effort parameter.",1437 "effort_medium": "This model does not support the effort parameter.",1438 "effort_high": "This model does not support the effort parameter.",1439 "effort_xhigh": "This model does not support the effort parameter.",1440 "effort_max": "This model does not support the effort parameter.",1441 "disabled_at_xhigh": "This model does not support the effort parameter.",1442 "temperature": "temperature: Extra inputs are not permitted",1443 "top_p": "top_p: Extra inputs are not permitted",1444 "top_k": "top_k: Extra inputs are not permitted",1445 "mid_system": "role 'system' is not supported on this model",1446 "max_tokens_over_cap": "max_tokens: 500000 > 64000, which is the maximum allowed number of output tokens for claude-sonnet-4-5-20250929",1447 "speed_fast": "'claude-sonnet-4-5-20250929' does not support the `speed` parameter. This feature is only available on supported models.",1448 "inference_geo_us": "'claude-sonnet-4-5-20250929' does not support inference_geo.",1449 "task_budget": "This model does not support user-configurable task budgets.",1450 "compaction": "'claude-sonnet-4-5-20250929' does not support the 'compact_20260112' context management strategy.",1451 "fast_beta": "'claude-sonnet-4-5-20250929' does not support the `speed` parameter. This feature is only available on supported models.",1452 "display_updates": "adaptive thinking is not supported on this model"1453 }1454 },1455 "claude-opus-4-5-20251101": {1456 "id": "claude-opus-4-5-20251101",1457 "alias": "claude-opus-4-5",1458 "display_name": "Claude Opus 4.5",1459 "tier": "opus",1460 "released": "2025-11-24T00:00:00Z",1461 "max_input_tokens": 200000,1462 "max_output_tokens": 64000,1463 "pricing_usd_per_mtok": {1464 "input": 5,1465 "cache_write_5m": 6.25,1466 "cache_write_1h": 10,1467 "cache_read": 0.5,1468 "output": 25,1469 "batch_input": 2.5,1470 "batch_output": 12.5,1471 "fast": null,1472 "long_prompt": null1473 },1474 "thinking": {1475 "adaptive": false,1476 "budget_tokens": true,1477 "disabled": "accepted",1478 "between_tools": false,1479 "disabled_blocked_at_effort": [],1480 "display_updates_beta": false1481 },1482 "effort": {1483 "supported": true,1484 "levels": [1485 "low",1486 "medium",1487 "high"1488 ]1489 },1490 "sampling_params": {1491 "api_2026_10_21": false,1492 "api_2023_06_01": true1493 },1494 "forced_tool_choice": true,1495 "assistant_prefill": true,1496 "mid_conversation_system": false,1497 "structured_outputs": true,1498 "task_budget_beta": false,1499 "compaction_beta": false,1500 "context_editing_beta": true,1501 "server_fallbacks_beta": true,1502 "fast_mode": "unsupported",1503 "inference_geo": false,1504 "server_tools": {1505 "web_search_20260209": true,1506 "web_search_20250305": true,1507 "web_fetch_20260209": true,1508 "code_execution_20260521": true,1509 "tool_search": true1510 },1511 "client_tools": {1512 "memory_20250818": true,1513 "bash_20250124": true,1514 "text_editor_20250728": true1515 },1516 "citations": true,1517 "count_tokens": true,1518 "capabilities": {1519 "batch": {1520 "supported": true1521 },1522 "citations": {1523 "supported": true1524 },1525 "code_execution": {1526 "supported": true1527 },1528 "context_management": {1529 "supported": true,1530 "clear_tool_uses_20250919": {1531 "supported": true1532 },1533 "clear_thinking_20251015": {1534 "supported": true1535 },1536 "compact_20260112": {1537 "supported": false1538 }1539 },1540 "effort": {1541 "supported": true,1542 "low": {1543 "supported": true1544 },1545 "medium": {1546 "supported": true1547 },1548 "high": {1549 "supported": true1550 },1551 "xhigh": {1552 "supported": false1553 },1554 "max": {1555 "supported": false1556 }1557 },1558 "image_input": {1559 "supported": true1560 },1561 "pdf_input": {1562 "supported": true1563 },1564 "server_tools": {1565 "supported": true,1566 "code_execution": {1567 "supported": true1568 },1569 "web_search": {1570 "supported": true1571 }1572 },1573 "structured_outputs": {1574 "supported": true1575 },1576 "thinking": {1577 "supported": true,1578 "types": {1579 "enabled": {1580 "supported": true1581 },1582 "adaptive": {1583 "supported": false1584 },1585 "disabled": {1586 "supported": true1587 },1588 "between_tools": {1589 "supported": false1590 }1591 }1592 }1593 },1594 "observed_errors": {1595 "thinking_adaptive": "adaptive thinking is not supported on this model",1596 "thinking_adaptive_summarized": "adaptive thinking is not supported on this model",1597 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",1598 "effort_xhigh": "This model does not support effort level 'xhigh'. Supported levels: high, low, medium.",1599 "effort_max": "This model does not support effort level 'max'. Supported levels: high, low, medium.",1600 "disabled_at_xhigh": "This model does not support effort level 'xhigh'. Supported levels: high, low, medium.",1601 "temperature": "temperature: Extra inputs are not permitted",1602 "top_p": "top_p: Extra inputs are not permitted",1603 "top_k": "top_k: Extra inputs are not permitted",1604 "mid_system": "role 'system' is not supported on this model",1605 "max_tokens_over_cap": "max_tokens: 500000 > 64000, which is the maximum allowed number of output tokens for claude-opus-4-5-20251101",1606 "speed_fast": "'claude-opus-4-5-20251101' does not support the `speed` parameter. This feature is only available on supported models.",1607 "inference_geo_us": "'claude-opus-4-5-20251101' does not support inference_geo.",1608 "task_budget": "This model does not support user-configurable task budgets.",1609 "compaction": "'claude-opus-4-5-20251101' does not support the 'compact_20260112' context management strategy.",1610 "fast_beta": "'claude-opus-4-5-20251101' does not support the `speed` parameter. This feature is only available on supported models.",1611 "display_updates": "adaptive thinking is not supported on this model"1612 }1613 },1614 "claude-sonnet-4-6": {1615 "id": "claude-sonnet-4-6",1616 "alias": null,1617 "display_name": "Claude Sonnet 4.6",1618 "tier": "sonnet",1619 "released": "2026-02-17T00:00:00Z",1620 "max_input_tokens": 1000000,1621 "max_output_tokens": 128000,1622 "pricing_usd_per_mtok": {1623 "input": 3,1624 "cache_write_5m": 3.75,1625 "cache_write_1h": 6,1626 "cache_read": 0.3,1627 "output": 15,1628 "batch_input": 1.5,1629 "batch_output": 7.5,1630 "fast": null,1631 "long_prompt": null1632 },1633 "thinking": {1634 "adaptive": true,1635 "budget_tokens": true,1636 "disabled": "accepted",1637 "between_tools": false,1638 "disabled_blocked_at_effort": [],1639 "display_updates_beta": true1640 },1641 "effort": {1642 "supported": true,1643 "levels": [1644 "low",1645 "medium",1646 "high",1647 "max"1648 ]1649 },1650 "sampling_params": {1651 "api_2026_10_21": false,1652 "api_2023_06_01": true1653 },1654 "forced_tool_choice": true,1655 "assistant_prefill": false,1656 "mid_conversation_system": false,1657 "structured_outputs": true,1658 "task_budget_beta": false,1659 "compaction_beta": true,1660 "context_editing_beta": true,1661 "server_fallbacks_beta": true,1662 "fast_mode": "unsupported",1663 "inference_geo": true,1664 "server_tools": {1665 "web_search_20260209": true,1666 "web_search_20250305": true,1667 "web_fetch_20260209": true,1668 "code_execution_20260521": true,1669 "tool_search": true1670 },1671 "client_tools": {1672 "memory_20250818": true,1673 "bash_20250124": true,1674 "text_editor_20250728": true1675 },1676 "citations": true,1677 "count_tokens": true,1678 "capabilities": {1679 "batch": {1680 "supported": true1681 },1682 "citations": {1683 "supported": true1684 },1685 "code_execution": {1686 "supported": true1687 },1688 "context_management": {1689 "supported": true,1690 "clear_tool_uses_20250919": {1691 "supported": true1692 },1693 "clear_thinking_20251015": {1694 "supported": true1695 },1696 "compact_20260112": {1697 "supported": true1698 }1699 },1700 "effort": {1701 "supported": true,1702 "low": {1703 "supported": true1704 },1705 "medium": {1706 "supported": true1707 },1708 "high": {1709 "supported": true1710 },1711 "xhigh": {1712 "supported": false1713 },1714 "max": {1715 "supported": true1716 }1717 },1718 "image_input": {1719 "supported": true1720 },1721 "pdf_input": {1722 "supported": true1723 },1724 "server_tools": {1725 "supported": true,1726 "code_execution": {1727 "supported": true1728 },1729 "web_search": {1730 "supported": true1731 }1732 },1733 "structured_outputs": {1734 "supported": true1735 },1736 "thinking": {1737 "supported": true,1738 "types": {1739 "enabled": {1740 "supported": true1741 },1742 "adaptive": {1743 "supported": true1744 },1745 "disabled": {1746 "supported": true1747 },1748 "between_tools": {1749 "supported": false1750 }1751 }1752 }1753 },1754 "observed_errors": {1755 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",1756 "effort_xhigh": "This model does not support effort level 'xhigh'. Supported levels: high, low, max, medium.",1757 "disabled_at_xhigh": "This model does not support effort level 'xhigh'. Supported levels: high, low, max, medium.",1758 "temperature": "temperature: Extra inputs are not permitted",1759 "top_p": "top_p: Extra inputs are not permitted",1760 "top_k": "top_k: Extra inputs are not permitted",1761 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",1762 "mid_system": "role 'system' is not supported on this model",1763 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-sonnet-4-6",1764 "speed_fast": "'claude-sonnet-4-6' does not support the `speed` parameter. This feature is only available on supported models.",1765 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",1766 "task_budget": "This model does not support user-configurable task budgets.",1767 "fast_beta": "'claude-sonnet-4-6' does not support the `speed` parameter. This feature is only available on supported models."1768 }1769 },1770 "claude-fable-5-2": {1771 "id": "claude-fable-5-2",1772 "alias": null,1773 "display_name": "Claude Fable 5.2",1774 "tier": "fable",1775 "released": "2026-11-09T18:30:00Z",1776 "max_input_tokens": 1000000,1777 "max_output_tokens": 128000,1778 "pricing_usd_per_mtok": {1779 "input": 8,1780 "cache_write_5m": 10,1781 "cache_write_1h": 16,1782 "cache_read": 0.2,1783 "output": 40,1784 "batch_input": 4,1785 "batch_output": 20,1786 "fast": {1787 "input": 16,1788 "output": 801789 },1790 "long_prompt": null1791 },1792 "thinking": {1793 "adaptive": true,1794 "budget_tokens": false,1795 "disabled": "rejected",1796 "between_tools": false,1797 "disabled_blocked_at_effort": [],1798 "display_updates_beta": true1799 },1800 "effort": {1801 "supported": true,1802 "levels": [1803 "low",1804 "medium",1805 "high",1806 "xhigh",1807 "max"1808 ]1809 },1810 "sampling_params": {1811 "api_2026_10_21": false,1812 "api_2023_06_01": false1813 },1814 "forced_tool_choice": false,1815 "assistant_prefill": false,1816 "mid_conversation_system": true,1817 "structured_outputs": true,1818 "task_budget_beta": true,1819 "compaction_beta": true,1820 "context_editing_beta": true,1821 "server_fallbacks_beta": true,1822 "fast_mode": "ga",1823 "inference_geo": true,1824 "server_tools": {1825 "web_search_20260209": true,1826 "web_search_20250305": true,1827 "web_fetch_20260209": true,1828 "code_execution_20260521": true,1829 "tool_search": true1830 },1831 "client_tools": {1832 "memory_20250818": true,1833 "bash_20250124": true,1834 "text_editor_20250728": true1835 },1836 "citations": true,1837 "count_tokens": true,1838 "capabilities": {1839 "batch": {1840 "supported": true1841 },1842 "citations": {1843 "supported": true1844 },1845 "code_execution": {1846 "supported": true1847 },1848 "context_management": {1849 "supported": true,1850 "clear_tool_uses_20250919": {1851 "supported": true1852 },1853 "clear_thinking_20251015": {1854 "supported": true1855 },1856 "compact_20260112": {1857 "supported": true1858 }1859 },1860 "effort": {1861 "supported": true,1862 "low": {1863 "supported": true1864 },1865 "medium": {1866 "supported": true1867 },1868 "high": {1869 "supported": true1870 },1871 "xhigh": {1872 "supported": true1873 },1874 "max": {1875 "supported": true1876 }1877 },1878 "image_input": {1879 "supported": true1880 },1881 "pdf_input": {1882 "supported": true1883 },1884 "server_tools": {1885 "supported": true,1886 "code_execution": {1887 "supported": true1888 },1889 "web_search": {1890 "supported": true1891 }1892 },1893 "structured_outputs": {1894 "supported": true1895 },1896 "thinking": {1897 "supported": true,1898 "types": {1899 "enabled": {1900 "supported": false1901 },1902 "adaptive": {1903 "supported": true1904 },1905 "disabled": {1906 "supported": false1907 },1908 "between_tools": {1909 "supported": false1910 }1911 }1912 }1913 },1914 "observed_errors": {1915 "thinking_disabled": "\"thinking.type.disabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",1916 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",1917 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",1918 "disabled_at_xhigh": "\"thinking.type.disabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",1919 "temperature": "temperature: Extra inputs are not permitted",1920 "top_p": "top_p: Extra inputs are not permitted",1921 "top_k": "top_k: Extra inputs are not permitted",1922 "tool_any": "tool_choice: type \"tool\" and \"any\" are not supported for this model.",1923 "tool_forced": "tool_choice: type \"tool\" and \"any\" are not supported for this model.",1924 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",1925 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-fable-5-2",1926 "legacy_temperature": "`temperature` is deprecated for this model.",1927 "legacy_top_p": "`top_p` is deprecated for this model.",1928 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message."1929 }1930 },1931 "claude-opus-4-6": {1932 "id": "claude-opus-4-6",1933 "alias": null,1934 "display_name": "Claude Opus 4.6",1935 "tier": "opus",1936 "released": "2026-02-04T00:00:00Z",1937 "max_input_tokens": 1000000,1938 "max_output_tokens": 128000,1939 "pricing_usd_per_mtok": {1940 "input": 5,1941 "cache_write_5m": 6.25,1942 "cache_write_1h": 10,1943 "cache_read": 0.5,1944 "output": 25,1945 "batch_input": 2.5,1946 "batch_output": 12.5,1947 "fast": null,1948 "long_prompt": null1949 },1950 "thinking": {1951 "adaptive": true,1952 "budget_tokens": true,1953 "disabled": "accepted",1954 "between_tools": false,1955 "disabled_blocked_at_effort": [],1956 "display_updates_beta": true1957 },1958 "effort": {1959 "supported": true,1960 "levels": [1961 "low",1962 "medium",1963 "high",1964 "max"1965 ]1966 },1967 "sampling_params": {1968 "api_2026_10_21": false,1969 "api_2023_06_01": true1970 },1971 "forced_tool_choice": true,1972 "assistant_prefill": false,1973 "mid_conversation_system": false,1974 "structured_outputs": true,1975 "task_budget_beta": false,1976 "compaction_beta": true,1977 "context_editing_beta": true,1978 "server_fallbacks_beta": true,1979 "fast_mode": "beta_header_required",1980 "inference_geo": true,1981 "server_tools": {1982 "web_search_20260209": true,1983 "web_search_20250305": true,1984 "web_fetch_20260209": true,1985 "code_execution_20260521": true,1986 "tool_search": true1987 },1988 "client_tools": {1989 "memory_20250818": true,1990 "bash_20250124": true,1991 "text_editor_20250728": true1992 },1993 "citations": true,1994 "count_tokens": true,1995 "capabilities": {1996 "batch": {1997 "supported": true1998 },1999 "citations": {2000 "supported": true2001 },2002 "code_execution": {2003 "supported": true2004 },2005 "context_management": {2006 "supported": true,2007 "clear_tool_uses_20250919": {2008 "supported": true2009 },2010 "clear_thinking_20251015": {2011 "supported": true2012 },2013 "compact_20260112": {2014 "supported": true2015 }2016 },2017 "effort": {2018 "supported": true,2019 "low": {2020 "supported": true2021 },2022 "medium": {2023 "supported": true2024 },2025 "high": {2026 "supported": true2027 },2028 "xhigh": {2029 "supported": false2030 },2031 "max": {2032 "supported": true2033 }2034 },2035 "image_input": {2036 "supported": true2037 },2038 "pdf_input": {2039 "supported": true2040 },2041 "server_tools": {2042 "supported": true,2043 "code_execution": {2044 "supported": true2045 },2046 "web_search": {2047 "supported": true2048 }2049 },2050 "structured_outputs": {2051 "supported": true2052 },2053 "thinking": {2054 "supported": true,2055 "types": {2056 "enabled": {2057 "supported": true2058 },2059 "adaptive": {2060 "supported": true2061 },2062 "disabled": {2063 "supported": true2064 },2065 "between_tools": {2066 "supported": false2067 }2068 }2069 }2070 },2071 "observed_errors": {2072 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",2073 "effort_xhigh": "This model does not support effort level 'xhigh'. Supported levels: high, low, max, medium.",2074 "disabled_at_xhigh": "This model does not support effort level 'xhigh'. Supported levels: high, low, max, medium.",2075 "temperature": "temperature: Extra inputs are not permitted",2076 "top_p": "top_p: Extra inputs are not permitted",2077 "top_k": "top_k: Extra inputs are not permitted",2078 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",2079 "mid_system": "role 'system' is not supported on this model",2080 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-opus-4-6",2081 "speed_fast": "To use the `speed` parameter with 'claude-opus-4-6', send the `anthropic-beta: fast-mode-2026-02-01` header.",2082 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",2083 "task_budget": "This model does not support user-configurable task budgets."2084 }2085 },2086 "claude-fable-5-1": {2087 "id": "claude-fable-5-1",2088 "alias": null,2089 "display_name": "Claude Fable 5.1",2090 "tier": "fable",2091 "released": "2026-08-28T00:00:00Z",2092 "max_input_tokens": 1000000,2093 "max_output_tokens": 128000,2094 "pricing_usd_per_mtok": {2095 "input": 10,2096 "cache_write_5m": 12.5,2097 "cache_write_1h": 20,2098 "cache_read": 0.25,2099 "output": 50,2100 "batch_input": 5,2101 "batch_output": 25,2102 "fast": null,2103 "long_prompt": null2104 },2105 "thinking": {2106 "adaptive": true,2107 "budget_tokens": false,2108 "disabled": "rejected",2109 "between_tools": false,2110 "disabled_blocked_at_effort": [],2111 "display_updates_beta": true2112 },2113 "effort": {2114 "supported": true,2115 "levels": [2116 "low",2117 "medium",2118 "high",2119 "xhigh",2120 "max"2121 ]2122 },2123 "sampling_params": {2124 "api_2026_10_21": false,2125 "api_2023_06_01": false2126 },2127 "forced_tool_choice": false,2128 "assistant_prefill": false,2129 "mid_conversation_system": true,2130 "structured_outputs": true,2131 "task_budget_beta": true,2132 "compaction_beta": true,2133 "context_editing_beta": true,2134 "server_fallbacks_beta": true,2135 "fast_mode": "unsupported",2136 "inference_geo": true,2137 "server_tools": {2138 "web_search_20260209": true,2139 "web_search_20250305": true,2140 "web_fetch_20260209": true,2141 "code_execution_20260521": true,2142 "tool_search": true2143 },2144 "client_tools": {2145 "memory_20250818": true,2146 "bash_20250124": true,2147 "text_editor_20250728": true2148 },2149 "citations": true,2150 "count_tokens": true,2151 "capabilities": {2152 "batch": {2153 "supported": true2154 },2155 "citations": {2156 "supported": true2157 },2158 "code_execution": {2159 "supported": true2160 },2161 "context_management": {2162 "supported": true,2163 "clear_tool_uses_20250919": {2164 "supported": true2165 },2166 "clear_thinking_20251015": {2167 "supported": true2168 },2169 "compact_20260112": {2170 "supported": true2171 }2172 },2173 "effort": {2174 "supported": true,2175 "low": {2176 "supported": true2177 },2178 "medium": {2179 "supported": true2180 },2181 "high": {2182 "supported": true2183 },2184 "xhigh": {2185 "supported": true2186 },2187 "max": {2188 "supported": true2189 }2190 },2191 "image_input": {2192 "supported": true2193 },2194 "pdf_input": {2195 "supported": true2196 },2197 "server_tools": {2198 "supported": true,2199 "code_execution": {2200 "supported": true2201 },2202 "web_search": {2203 "supported": true2204 }2205 },2206 "structured_outputs": {2207 "supported": true2208 },2209 "thinking": {2210 "supported": true,2211 "types": {2212 "enabled": {2213 "supported": false2214 },2215 "adaptive": {2216 "supported": true2217 },2218 "disabled": {2219 "supported": false2220 },2221 "between_tools": {2222 "supported": false2223 }2224 }2225 }2226 },2227 "observed_errors": {2228 "thinking_disabled": "\"thinking.type.disabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",2229 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",2230 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",2231 "disabled_at_xhigh": "\"thinking.type.disabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",2232 "temperature": "temperature: Extra inputs are not permitted",2233 "top_p": "top_p: Extra inputs are not permitted",2234 "top_k": "top_k: Extra inputs are not permitted",2235 "tool_any": "tool_choice: type \"tool\" and \"any\" are not supported for this model.",2236 "tool_forced": "tool_choice: type \"tool\" and \"any\" are not supported for this model.",2237 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",2238 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-fable-5-1",2239 "speed_fast": "'claude-fable-5-1' does not support the `speed` parameter. This feature is only available on supported models.",2240 "legacy_temperature": "`temperature` is deprecated for this model.",2241 "legacy_top_p": "`top_p` is deprecated for this model.",2242 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",2243 "fast_beta": "'claude-fable-5-1' does not support the `speed` parameter. This feature is only available on supported models."2244 }2245 },2246 "claude-fable-5": {2247 "id": "claude-fable-5",2248 "alias": null,2249 "display_name": "Claude Fable 5",2250 "tier": "fable",2251 "released": "2026-06-07T00:00:00Z",2252 "max_input_tokens": 1000000,2253 "max_output_tokens": 128000,2254 "pricing_usd_per_mtok": {2255 "input": 10,2256 "cache_write_5m": 12.5,2257 "cache_write_1h": 20,2258 "cache_read": 1,2259 "output": 50,2260 "batch_input": 5,2261 "batch_output": 25,2262 "fast": null,2263 "long_prompt": null2264 },2265 "thinking": {2266 "adaptive": true,2267 "budget_tokens": false,2268 "disabled": "rejected",2269 "between_tools": false,2270 "disabled_blocked_at_effort": [],2271 "display_updates_beta": true2272 },2273 "effort": {2274 "supported": true,2275 "levels": [2276 "low",2277 "medium",2278 "high",2279 "xhigh",2280 "max"2281 ]2282 },2283 "sampling_params": {2284 "api_2026_10_21": false,2285 "api_2023_06_01": false2286 },2287 "forced_tool_choice": true,2288 "assistant_prefill": false,2289 "mid_conversation_system": true,2290 "structured_outputs": true,2291 "task_budget_beta": true,2292 "compaction_beta": true,2293 "context_editing_beta": true,2294 "server_fallbacks_beta": true,2295 "fast_mode": "unsupported",2296 "inference_geo": true,2297 "server_tools": {2298 "web_search_20260209": true,2299 "web_search_20250305": true,2300 "web_fetch_20260209": true,2301 "code_execution_20260521": true,2302 "tool_search": true2303 },2304 "client_tools": {2305 "memory_20250818": true,2306 "bash_20250124": true,2307 "text_editor_20250728": true2308 },2309 "citations": true,2310 "count_tokens": true,2311 "capabilities": {2312 "batch": {2313 "supported": true2314 },2315 "citations": {2316 "supported": true2317 },2318 "code_execution": {2319 "supported": true2320 },2321 "context_management": {2322 "supported": true,2323 "clear_tool_uses_20250919": {2324 "supported": true2325 },2326 "clear_thinking_20251015": {2327 "supported": true2328 },2329 "compact_20260112": {2330 "supported": true2331 }2332 },2333 "effort": {2334 "supported": true,2335 "low": {2336 "supported": true2337 },2338 "medium": {2339 "supported": true2340 },2341 "high": {2342 "supported": true2343 },2344 "xhigh": {2345 "supported": true2346 },2347 "max": {2348 "supported": true2349 }2350 },2351 "image_input": {2352 "supported": true2353 },2354 "pdf_input": {2355 "supported": true2356 },2357 "server_tools": {2358 "supported": true,2359 "code_execution": {2360 "supported": true2361 },2362 "web_search": {2363 "supported": true2364 }2365 },2366 "structured_outputs": {2367 "supported": true2368 },2369 "thinking": {2370 "supported": true,2371 "types": {2372 "enabled": {2373 "supported": false2374 },2375 "adaptive": {2376 "supported": true2377 },2378 "disabled": {2379 "supported": false2380 },2381 "between_tools": {2382 "supported": false2383 }2384 }2385 }2386 },2387 "observed_errors": {2388 "thinking_disabled": "\"thinking.type.disabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",2389 "thinking_budget": "\"thinking.type.enabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",2390 "thinking_between_tools": "\"thinking.type.between_tools\" is not supported for this model.",2391 "disabled_at_xhigh": "\"thinking.type.disabled\" is not supported for this model. Use \"thinking.type.adaptive\" and \"output_config.effort\" to control thinking behavior.",2392 "temperature": "temperature: Extra inputs are not permitted",2393 "top_p": "top_p: Extra inputs are not permitted",2394 "top_k": "top_k: Extra inputs are not permitted",2395 "prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",2396 "max_tokens_over_cap": "max_tokens: 500000 > 128000, which is the maximum allowed number of output tokens for claude-fable-5",2397 "speed_fast": "'claude-fable-5' does not support the `speed` parameter. This feature is only available on supported models.",2398 "legacy_temperature": "`temperature` is deprecated for this model.",2399 "legacy_top_p": "`top_p` is deprecated for this model.",2400 "legacy_prefill": "This model does not support assistant message prefill. The conversation must end with a user message.",2401 "fast_beta": "'claude-fable-5' does not support the `speed` parameter. This feature is only available on supported models."2402 }2403 }2404 }2405}