AnalysisAI ModelsNovember 11, 2026

Blog: a linear program can replicate GPT-6 Astra's weight edits

Read original source →nathan.rs

Astra's weight-space edit of Qwen3.5-0.8B — 0.016% of weights changed, MATH-500 rising 7.9% to 48.1% — took ~8 hours and 28 forward passes; two LP solves of about a minute each match it with 8x fewer changed weights. The edit mainly removes thinking loops: IFEval went 21% to 62%.

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