🧰 OpenEnv

The items that name it 7

• [AINews] Anthropic ends Coding Interviews: "Hunger beats tenure"
  article2026-10-28

  RL environment framework Reflection plans to move future runs to.

• [AINews] Black October
  article2026-10-23

  Hugging Face RL environments project moving to AAIF and the Linux Foundation.

• Turning Database Grading into RL Rewards: Post-Training Agents with ThinkingBox
  writeup2026-10-22

  Environment used to run the ThinkingBox-Bench evaluation of checkpoints.

• Welcome Muse Spark Open: open-weight frontier multimodal mixture-of-experts model from Meta
  article2026-10-15

  Wraps web driver actions as a browser environment with reset, step, observation and termination interface.

• The Agent Said It Was Done. The Database Disagreed.
  article2026-10-03

  Interface/environment behind which ThinkingBox-Bench now sits, returning a binary pass/fail reward per finished episode; also usable for non-benchmark training scenarios

• Welcome RL Environments to the hub
  article2026-09-28

  A framework whose Harbor integration runs an agent (such as OpenCode) on task directories and returns the verifier's reward alongside the agent's trace; it already auto-tags environments on upload.

• Training a coding model to paint watercolours with TRL and OpenEnv
  article2026-09-03

  Framework used to build the RL environment wrapping the model, the reward and the rendering pipeline; the author found and fixed a websocket-caching bug in it and sent the fix upstream