# License

PersonaGym is released under the MIT License.

## MIT License

```
MIT License

Copyright (c) 2026 PersonaGym Team

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
```

## Third-Party Licenses

PersonaGym uses the following open-source libraries:

| Library | License | Use |
|---------|---------|-----|
| PyYAML | MIT | Configuration parsing |
| OpenAI Python | Apache 2.0 | OpenAI API client |
| Anthropic Python | MIT | Anthropic API client |
| python-dotenv | BSD-3 | Environment variables |
| tqdm | MIT | Progress bars |
| NumPy | BSD-3 | Numerical operations |

## Commercial Use

The MIT License permits commercial use. You may:

- Use PersonaGym in commercial products
- Modify the source code
- Distribute modified versions
- Use generated data for commercial purposes

## Attribution

While not required by the MIT License, we appreciate attribution when using PersonaGym in published work.

## Questions

For licensing questions, please open an issue on [GitHub](https://github.com/yccm/LLM_PPOpt/issues).