/Tech2h ago

RAGEN Paper Finds Agents Reason Less After Reinforcement Learning

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Cameron R. Wolfe, Ph.D.@cwolferesearch#1607inTech

The RAGEN paper shows agents reason less after RL, which is counterintuitive to me. I'm wondering if this is an artifact of synthetic environments / vanilla GRPO rather than a legit pattern, but biases in GRPO tend to inflate response lengths rather than shorten them.

1:15 PM · Jun 10, 2026 · 916 Views
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link to paper: https://arxiv.org/abs/2504.20073

The RAGEN paper shows agents reason less after RL, which is counterintuitive to me. I'm wondering if this is an artifact of synthetic environments / vanilla GRPO rather than a legit pattern, but biases in GRPO tend to inflate response lengths rather than shorten them.

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Alex YGift@Radipdegen

@cwolferesearch might be overfitting to synthetic reward patterns rather than actual reasoning

2h