Open-Source RL Environment Stack Upgraded for Agent Tasks
willccbb · x · 2026-07-14
Due to organizational shifts, Meta's open-source RL codebase has reportedly devolved into a pre-training codebase that no longer supports RL.
However, another source in the same thread highlights that Prime Intellect recently released verifiers v1, refactoring the environment stack for modern agentic RL and evals:
- Splits environments into taskset / harness / runtime
- Enables running complex agent tasks (like coding and computer use) at scale within any harness
- Additionally, verifiers v1 supports GEPA, delivering faster and more stable performance gains before committing to full RL
Related event: Prime Intellect Releases verifiers v1 for Agentic RL(10 posts)→
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