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Reinforcement Learning

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Tuesday, 22 September 2026

The Sequence Knowledge - Issue 937: RSI in Post-Training: The Loop That Already Shipped

TheSequence 3 weeks ago 16 ● 2 sources

The article describes the post-training self-improvement loop where a model generates candidate answers, a grader selects the good ones for training data, and the model retrains to produce better answers. It says this loop has been run at industrial scale for two years across frontier labs. As a result, the focus shifts from speculative self-modifying agents to the already-deployed post-training pipeline as the main driver of model improvements.

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