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1{2 "_comment": "USD per 1M tokens, Anthropic first-party API, retrieved 2026-11-09 from the claude-api reference (cached 2026-10-06). Batch API = 50% of these. Re-verify before every paid run; the engine refuses to run live if a model is missing here.",3 "retrieved_at": "2026-11-09",4 "source": "Anthropic pricing via claude-api skill reference (platform.claude.com/docs pricing page)",5 "models": {6 "claude-opus-5-5": {"input": 4.00, "output": 20.00, "cache_read": 0.20},7 "claude-sonnet-5-5": {"input": 2.00, "output": 10.00, "cache_read": 0.20},8 "claude-haiku-5-5": {"input": 0.10, "output": 0.50, "cache_read": 0.01},9 "claude-opus-5": {"input": 5.00, "output": 25.00, "cache_read": 0.50},10 "claude-sonnet-5": {"input": 2.00, "output": 10.00, "cache_read": 0.20}11 },12 "batch_discount": 0.513}14