SPPO

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Sequence-Level Proximal Policy Optimization

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+0.60Sentiment (Very Positive)

+1.2%Velocity (7d)

First seen: Apr 16, 2026Last active: 8h ago

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Research MilestoneApr 16, 2026
New RL algorithm introduced, achieving 5.9x speedup over GRPO for math reasoning fine-tuning.
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speedup:
5.9x
benchmarks:
AIME,AMC,MATH

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SPPO: Sequence-Level PPO Cuts RL Training Time 5.9x for Math Reasoning
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Researchers introduced SPPO, a sequence-level PPO algorithm that reformulates reasoning as a contextual bandit. It achieves a 5.9x speedup over GRPO w
20h ago89 relevance

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