LeRobot vs 
Gymnasium
LeRobot vs Gymnasium compared for 2026 — features, license, ease of use, performance and which one to choose. Train real robots with the Hugging Face stack vs The standard interface for reinforcement learning.
Updated regularly · curated by OpenSourceAI.tech
LeRobot vs Gymnasium at a glance
| Spec | LeRobot | Gymnasium |
|---|---|---|
| Category | Robotics & embodied AI | Robotics & embodied AI |
| Type | Robot learning library | RL environment API |
| License | Apache-2.0 | MIT |
| Runs locally | Yes | Yes |
| Primary language | Python | Python |
| Ease of use | Intermediate | Beginner |
| Best for | anyone teaching a physical robot new skills without building the plumbing first | learning RL, or benchmarking an algorithm against a known baseline |
| GitHub stars | — | 12.2k |
How LeRobot and Gymnasium score
| Criterion | LeRobot | Gymnasium |
|---|---|---|
| Popularity | n/a | 3.0 |
| Maintenance | n/a | 5.0 |
| Ease of use | 3.5 | 5.0 |
| Privacy | 5.0 | 5.0 |
| License freedom | 5.0 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
What each one is
LeRobot
LeRobot brings pretrained models, datasets and simulation environments for real-world robotics into one Python library — the closest thing the field has to a Transformers moment.
- Pretrained policies and shared datasets on the Hub
- Works with cheap off-the-shelf arms, not just lab hardware
- Backed by an active community and weekly releases
Gymnasium
Gymnasium is the maintained successor to OpenAI Gym: one API that every RL algorithm and environment speaks.
- The interface the whole RL ecosystem implements
- Dozens of environments included
- Actively maintained, unlike the original Gym
Key differences
LeRobot is robot learning library, while Gymnasium is rL environment API. Their licenses differ (Apache-2.0 vs MIT), which matters if you ship a commercial product. LeRobot leans more intermediate-friendly, whereas Gymnasium is more suited to beginner users. In short, LeRobot fits anyone teaching a physical robot new skills without building the plumbing first, and Gymnasium fits learning RL, or benchmarking an algorithm against a known baseline.
Which should you choose?
Choose LeRobot for anyone teaching a physical robot new skills without building the plumbing first. Choose Gymnasium for learning RL, or benchmarking an algorithm against a known baseline.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Frequently asked questions
Is LeRobot or Gymnasium easier to use?
Gymnasium is generally the easier of the two to get started with, while LeRobot rewards more setup with more control.
Are LeRobot and Gymnasium free?
LeRobot is free and open source (Apache-2.0), and Gymnasium is free and open source (MIT). Neither charges for the core software.
Can I run LeRobot and Gymnasium locally?
LeRobot: yes · Gymnasium: yes. Both can be used without sending your data to a third-party cloud where their setup allows.
LeRobot vs Gymnasium — which should I pick in 2026?
Choose LeRobot for anyone teaching a physical robot new skills without building the plumbing first. Choose Gymnasium for learning RL, or benchmarking an algorithm against a known baseline.
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