spb/modelmap Public License
Internal cartography of local LLMs on Apple Silicon — registered, gated, negative-first. Public atlas at modelmap.io.
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expC run #1: agreement map FAILS causal verification — survival ledger 0/1
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Layer-skip ablation (Tap.skip): top-5 differential layers damage +2.17, BELOW random-5 mean +3.14 (p95 +4.85); bottom-5 (layers 0-4) largest at +4.99. Decodability != causal support (Hase-class dissociation, in-house). Atlas probes/v2 records the failed check (interventions + confidence.md); survival-rate ledger opened in expC analysis. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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expA run #2: first positive maps (agreement, arith_valid) + real noise floor
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- v2 promptsets: structure-borne, token-balanced (overlap certificates); capture_pooled returns mean+last-token reps in one pass - Strict twin gate falsified again (word_order twin acc 0.96 — subword statistics); gate retired, differential (real-twin) is the map - agreement: 25/28 signal layers (max dSel +0.379); arith_valid: real 0.86/0.90 vs twin 0.56, strongest last-token; word_order null-dominated - First real noise floor: top-5 replication ~0.54 off ceiling; dataset shift > seed SD on only 3-8/28 layers (registered 1/3 not met) - atlas probes/v2 published (Level 1, per-property verdicts); site charts generalized to any probes entry; home leads with agreement map Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>