MIT CSAIL researchers Rikiya Takehi, Jayden Teoh, Alex Zhang, and Omar Khattab used OpenAI's GPT-6 Astra on November 2 to perform "weight-space programming." By directly editing roughly 0.016% of Qwen3.5-0.8B's weights, they raised its MATH-500 score from 7.9% to 48.1% primarily by correcting repeti