GPT-6 Astra Edited A Small AI's Weights Directly And Made It 6x Better At Maths

GPT-6 Astra Edited A Small AI's Weights Directly And Made It 6x Better At Maths

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GPT-6 Astra Edited A Small AI's Weights Directly And Made It 6x Better At Maths

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Summary Report

GPT-6 Astra edited 0.016% of Qwen3.5-0.8B's weights to fix reasoning loops, lifting MATH-500 from 7.9% to 48.1%.

  • 01. Edited 0.016% of weights with no gradients or training
  • 02. MATH-500 7.9% to 48.1%; IFEval about 3x; not peer reviewed
MIT CSAIL researchers asked GPT-6 Astra to improve Qwen3.5-0.8B at maths without training. Astra read the raw weights, found a flaw that caused reasoning loops, and edited just 0.016% of them directly. MATH-500 rose from 7.9% to 48.1% and instruction following improved about 3x. The team calls it weight-space programming. The result is early and not peer reviewed.