---
title: Open Source License
description: FastGPT Open Source License
---

The FastGPT project is open-sourced under the Apache License 2.0, with the following additional conditions:

- FastGPT may be used commercially -- for example, as a backend-as-a-service for other applications or as an application development platform for enterprises. However, a commercial license is required when the following conditions apply:

  - Multi-tenant SaaS: You may not use the fastgpt.io source code to operate a multi-tenant SaaS service similar to fastgpt.io without explicit written authorization from FastGPT.
  - Logo and copyright: You may not remove or modify the logo or copyright information in the FastGPT console.

  Contact us at dennis@sealos.io for licensing inquiries.

- As a contributor, you agree that your contributed code may be used for the following purposes:

  - The maintainers reserve the right to change the open source license to a more restrictive or more permissive one.
  - It may be used for commercial purposes, such as FastGPT's cloud service.

All other rights and restrictions follow the Apache License 2.0. For full details, refer to the complete Apache License 2.0 text. The interaction design of this product is protected by design patents. © 2023 Sealos.
