Author

Jalaj Bhandari

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#machine learning Preprint Nov 2025

Iterative GRPO: Batch-Online Multi-Turn RL via Single-Turn RLHF

Practical LLM agents often operate over multi-turn conversations where success is determined only after the full interaction ends. Most multi-turn RL methods train via on-policy rollouts, but unlike in single-turn RLHF, the policy cannot produce a trajectory alone, since an external environment must respond after each...

Daniel Jiang, Ankur Samanta, Yukai Yang et al. · 2 citations

#machine learning Jul 2026

Off-Context GRPO: Learning to Reason on Hard Problems using Privileged Information

Off-Context GRPO (OC-GRPO), a minimally modified variant of GRPO that uses guided rollouts but applies an importance-corrected objective to steer the update back toward the original unguided objective, avoiding the mismatch that destabilizes uncorrected guided training.

Priyank Agrawal, Ankur Samanta, S. Ghasemlou et al. · arXiv.org · 1 citation