New work tackles half-precision PPO instability on commodity GPUs with structure-aware fixes like global scalar protection and policy-change residual handling, targeting lower memory and stable training on…

#PPO #HalfPrecision #MLOptimization #GPUTraining
https://arxiv.org/abs/2610.13306

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GRPO reward model: el critic se fue, no él

¿GRPO elimina el reward model? No: solo el critic desaparece, y así GRPO ahorra memoria sin perder precisión en el entrenamiento RL de modelos

#grpo #rewardmodel #ppo #deepseek #reinforcementlearning