---
title: "GRPO RL Training"
created: 2026-04-15
updated: 2026-04-15
type: concept
tags: [grpo, training, rl]
sources: []
---

# GRPO RL Training

GRPO-based RL training methodology refers to the application of [[grp-o|Group Relative Policy Optimization]] in the reinforcement learning phase of LLM post-training. This approach is used in agentic coding systems like [[agentic-coding]] and models such as [[composer2]], where GRPO provides a stable and effective training signal by comparing group-relative rewards rather than relying on absolute reward models.

## Related

- [[grp-o]] — GRPO algorithm itself
- [[agentic-coding]] — Agentic coding training leverages GRPO RL training
- [[composer2]] — Composer 2 uses GRPO-based training methodology

## References