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OpenEnv

Open-source framework and catalog for agentic RL environments

Platform or hubCoding and SWEComputer useTool useDomain experts

OpenEnv is a framework for creating, deploying and using isolated execution environments for agentic RL, with a Gymnasium-style reset/step/state API and 40+ environments packaged as Docker images that deploy as Hugging Face Spaces. Meta’s PyTorch team and Hugging Face launched it in October 2025, and a technical committee including Nvidia, Microsoft, Prime Intellect, Mercor and Fleet now governs it. It integrates with TRL, Unsloth, SkyRL and Harbor.

Best for: A neutral, open standard for packaging and sharing environments

Funding not disclosed

  • – Bespoke builds
  • ✓ Platform or hub
  • ✓ Open source
  • ✓ Free, BSD-3
Visit OpenEnv

Facts checked November 9, 2026 against the sources listed below. OpenEnv does not pay to appear here.

1 Legal nameOpenEnv (open-source project)
2 HeadquartersNot disclosed
3 Founded2025
4 TeamNot disclosed
5 DeliveryOpen source, Platform or hub
6 ExclusivityNot disclosed
7 Customers and partnersNot disclosed
8 Published pricesFree (BSD-3-Clause)

Where we recommend them

Worth knowing before you sign

  • Early development; APIs may change
  • Governance document dates are internally inconsistent
  • Not a vendor: no commercial support or SLAs

Go to OpenEnv's site

Sources

  1. Hugging Face: OpenEnv launch
  2. OpenEnv docs
  3. OpenEnv on GitHub
  4. OpenEnv governance

Work at OpenEnv? Send corrections with a source to editors@toprlenvironments.com. We fix verified errors within five business days.

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