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Weight edits by Astra boost IFEval 3x without training loops

Without gradients, Astra identified and fixed a reasoning loop in Qwen3.5 by editing 0.016% of its weights. This correction raised the MATH-500 score from 7.9% to 48.1%.

Field
training language models
What they did
Researchers demonstrated that the language model Astra can read and write neural network weights, enabling it to identify and fix errors in trained models without using gradients.
Why it matters
This could significantly improve optimization and interpretability, as Astra managed to increase math accuracy from 7.9% to 48.1% and improve instruction following by three times.
#llm#qwen#astra#weight editing#reasoning

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