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The Polylog AI Intelligence Brief

Morning Edition · Wednesday, June 24, 2026

New work examines whether reasoning distillation losses differ in weight space, not just accuracy

A paper asks whether offline RL objectives that transfer reasoning from large teachers to small students produce genuinely different models, beyond their downstream scores.

New work examines whether reasoning distillation losses differ in weight space, not just accuracy

An arXiv paper on the weight-space geometry of offline reasoning training takes up a question the field usually skips. Offline reinforcement-learning (RL) objectives such as RFT, DFT, offline GRPO and DPO are widely used to distill reasonin…

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