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| Overview | /guides | Jan is a ChatGPT-alternative that runs on your own computer, with a local API server. |
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Jan is a ChatGPT-alternative that runs on your own computer, with a local API server.
Jan uses open-source AI models, stores data in open file formats, is highly customizable via extensions.
Jan believes in the need for an open source AI ecosystem. We aim to build infra and tooling to allow open source AIs to compete on a level playing field with proprietary offerings.
Why Jan?
💻 Own your AI
Jan runs 100% on your own machine, predictably, privately and even offline. No one else can see your conversations, not even us.
🏗️ Extensions
Jan ships with a powerful extension framework, which allows developers to extend and customize Jan's functionality. In fact, most core modules of Jan are built as extensions and use the same extensions API.
🗂️ Open File Formats
Jan stores data in a local folder of non-proprietary files. You're never locked-in and can do what you want with your data with extensions, or even a different app.
🌍 Open Source
Both Jan and Nitro, our lightweight inference engine, are licensed via the open source AGPLv3 license.