Jan

Jan is a free, open-source alternative to ChatGPT that runs entirely offline on your computer, offering a unique blend of control and privacy for AI interactions. Powered by its local AI engine, Cortex, Jan allows users to download and run large language models directly on their hardware—from personal PCs to multi-GPU clusters—without relying on external servers. This enables users to maintain full control over their data while accessing powerful AI capabilities.

With Jan, users can choose from a range of local models, optimize performance using GPU acceleration, and customize responses with specific instructions. Beyond offline functionality, Jan also supports connections to cloud AI services compatible with the OpenAI API, including GPT-4 and Claude, offering flexibility and choice for varied use cases. Its extensible architecture allows for custom features and contributions from the community, further enhancing the user experience. Jan prioritizes user privacy, ensuring conversations and files remain local, and is a powerful tool for individuals and organizations seeking secure, accessible AI solutions.