MIT: GPT-6 Astra rewrites other models' weights directly, lifting Qwen math accuracy from 7.9% to 48.1%

The Decoder · rss · 2026-11-04

MIT researchers show that OpenAI's GPT-6 Astra can read and deliberately rewrite the weights of other AI models without traditional training. In one experiment, Astra boosted a Qwen model's math accuracy from 7.9% to 48.1% by changing just 0.016% of its weights. The approach could fundamentally simplify AI optimization, though it still hits clear limits.

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