Karotte, the RL environments framework behind $15M/month, is now open source
mmmbchang · x · 2026-10-08
The Karotte team open-sourced their framework for building RL environments.
- Used for the past year to build MLE RL environments for frontier labs.
- Hardened through 1M+ evaluation runs and extensive red-teaming.
- Every production environment the team shipped was built on it, including environments behind $15M in revenue over the last month.
Related event: a16z Backs Preference Model, Which Open-Sources RL Framework Karotte(3 posts)→
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