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Follow the Winners: Conservative Policy Improvement with the Cross-Entropy Method for Critic-Free RFT
FTW replaces GRPO group rollouts with replay-buffer ordinal filtering for critic-free agentic RFT, matching PPO and GRPO on Sokoban and Search-R1 while trading value models or rollouts for CPU memory.
Paris Poster Session 4, Thu, Dec 10, 5:30 PM–7:30 PM, Paris Poster Hall · Published 2026
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AI panel: 10 of 20 reviewers recommend it
lenient 3/5
medium 7/10
strict 0/5