Free & Open Source ChatGPT Alternatives in 2025
A curated collection of the 1 best free & open source alternatives to ChatGPT.
The best free & open source alternative to ChatGPT is Jan.
ChatGPT alternatives are mainly Artificial Intelligence. Browse these narrower lists of alternatives if you're looking for the same functionality as ChatGPT.
Jan
Open-source desktop application that lets you chat with AI models locally on your device, with no data sent to the cloud and full control over your conversations.
Jan brings powerful AI capabilities to your desktop while keeping your data private. Run popular open-source models like Llama, Gemma and Mistral directly on your computer with no internet connection needed. Key features include:
• 100% offline operation - All processing happens locally on your device • Model Hub with easy access to download and run various AI models • Cloud AI integration when needed (OpenAI, Groq, Cohere) • Local API server compatible with OpenAI's API • Chat with files capability for PDFs and documents • Highly customizable with extensions and personalized assistants
The application is completely free, open-source and has been downloaded over 3.8M times. It gives you full control over your AI interactions while matching the capabilities of cloud-based alternatives.
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