Open-source alternatives to ChatGPT
9 open-source projects that do what ChatGPT does. Picked or featured by Willet; numbers are from GitHub.
Last updated
| Project | What it does | Stars | License | Last commit | Self-hostable |
|---|---|---|---|---|---|
| Self-hosted AI assistant that replies through your messaging apps | 393k | MIT | Yes | ||
| Self-improving AI agent for the terminal and your chat apps | 255k | MIT | Yes | ||
| Self-hosted multi-provider AI chat interface with agents and MCP tools | 46.1k | MIT | Yes | ||
| CPU inference engine that streams MoE model experts from disk | 43k | Apache-2.0 | Yes | ||
| Multi-model AI chat interface for jailbreak and red-team research | 11.9k | AGPL-3.0 | Yes | ||
| Company AI workspace with agents, sandboxed mini-apps, and guardrails | 11.5k | Apache-2.0 | Yes | ||
| Self-hosted multi-user AI assistant with teams of specialist agents | 10.4k | MIT | Yes | ||
| Installer that sets up a complete private local AI stack on your own machine | 7.6k | Apache-2.0 | Yes | ||
| Cross-platform AI chat client you can deploy on your own servers | 4.8k | MPL-2.0 | Yes |