Test-Time Compute and GRPO in Practice: From PPO to Critic-Free Reinforcement Learning
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Introduction: The Pre-training Wall and the Dawn of Test-Time Scaling For the past several years, the foundational law of frontier LLM development was Chinchilla's Pre-training Scaling Laws : stack deeper transformer layers, ingest multi-trillion token corpora, and burn increasingly massive GPU clu…
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- 2026-09-20 03:13 · DEV Community — Machine Learning
Test-Time Compute and GRPO in Practice: From PPO to Critic-Free Reinforcement Learning