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 changed 0.016% of weights, lifting MATH-500 from 7.9% to 48.1%, but took ~8 hours and 28 forward passes; two ~1-minute LP solves match it with 8x fewer changed weights. The edit mainly fixes thinking loops: IFEval rose 21% to 62%.

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