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ResearchOctober 9, 2026

Balancing Reference Guidance and Free Generation in Trajectory Rollouts for Reasoning RL

A verified reference solution provides a correct trajectory for training a reasoning model. Alternatively, a prefix of the reference can guide the model in generating a trajectory of its own. How much reference guidance should we provide? We study this question through prefix…

Hanyu Wang, Nakul Agarwal, Hossein Nourkhiz Mahjoub, Ehsan Moradi Pari, Makoto Fukushima, Jinghui Chen, Vaishnav Tadiparthi·arXiv — cs.AI
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Key Takeaways
  • 01.A verified reference solution provides a correct trajectory for training a reasoning model
  • 02.Alternatively, a prefix of the reference can guide the model in generating a trajectory of its own
  • 03.How much reference guidance should we provide

This material is provided as an extended analytical summary.

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