Telling a model "You are Claude, made by Anthropic" boosted all three benchmarks by ~2%

Sauers_ · x · 2026-10-19

Sauers shares a "funny side result" from Opus 5.5 evaluation (not statistically significant): simply telling the model "You are Claude, made by Anthropic" gave about +2% on all three benchmarks.

A reminder that benchmark scores are highly sensitive to prompt phrasing, and models may respond favorably to identity/origin hints.

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