Topic
Difficulty Aware Compute Allocation
2 episodes
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Rufus Air: An Open LLM Post Training Recipe
Pippa and Tyler unpack Rufus-Air, Amazon's openly documented eight-stage post-training recipe for GLM-4.5-Air-Base, and argue that the important release is the training discipline rather than another model scorecard.
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Learning Difficulty Aware Length Controlfor Efficient Hybrid Reasoning Models
Edmund and Geffen dig into When2Think, a framework that teaches large reasoning models to spend fewer tokens on easy math problems while still thinking deeply on hard ones, using a clever difficulty-aware reward signal instead of a separate controller or reward model.