Gymnasium

A standard API for reinforcement learning, maintained successor to OpenAI Gym

Growing steadily, 2.1× faster than Reinforment Learning this week

7d +0.33% +42 stars in 7d

30d +1.1% +144 stars in 30d

90d Not tracked yet — first tracked 2026-08-13

12,315 → 12,684 stars since Aug 13

12,403 Stars 1,505 Forks 108 Open issues

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api gym reinforcement-learning