Jan
Conversational AIFreemium
Jan: Open-source, offline, autonomous AI you fully own.
Last updated Dec 3, 2025
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What is Jan?
Jan's Top Features
Key capabilities that make Jan stand out.
Open-source under AGPLv3 with an active global community
100% offline operation once local models are downloaded
Privacy-first, local-first data storage and user control
Supports Llama3, Gemma3, Mistral, and any GGUF local models
Optional connection to OpenAI, Anthropic, Mistral, and Groq via API keys
Cross-platform: desktop (Windows, macOS, Linux), browser, and server; extension coming
OpenAI-compatible local API server at https://localhost:1337
Extensible architecture with a VSCode/Obsidian-like extensions API
Agentic, long-horizon task automation with Jan‑v2 multimodal model
Jan‑v1 with web search and Ichigo for speech AI voice interactions
Context persistence across sessions for personalization
No data collection or selling; optional anonymous telemetry
Integrations with developer tools like Continue.dev and Cline
Local and cloud hybrid model flexibility for different workloads
Use Cases
Who benefits most from this tool.
Privacy-conscious professionals
Run offline research, drafting, and analysis on sensitive data with no cloud exposure.
Developers and tinkerers
Use the OpenAI-compatible local API to power tools like Continue.dev and Cline with local models.
Enterprises with data sovereignty needs
Deploy local-first AI workflows to keep IP and customer data on-premise while enabling automation.
Remote and field workers
Operate in low-connectivity environments—airplanes, secure facilities, or remote sites—100% offline.
Educators and students
Provide classroom-safe AI assistance that respects privacy and works on school devices without internet.
Researchers and journalists
Launch long-horizon autonomous agents to gather sources, analyze findings, and draft reports.
Creators and product teams
Leverage Jan‑v2’s multimodal capabilities to iterate on specs, images, and documentation.
Customer support and operations
Automate triage, summarization, and knowledge base updates locally to protect user data.
Voice-first users
Use Ichigo for dictation, transcription, and voice interactions with private, on-device processing.
Extension builders and power users
Create custom workflows and tools via the extensions API to adapt Jan to unique use cases.
Tags
AI chat applicationautonomous agentdesktop applicationmobile applicationoffline functionalitylocal modelsprivacy-firstuser-controlledVSCode-like extension systemOpenAI-compatible local API servermultimodal reasoningtask automationdata ownership
Jan's Pricing
Free plan available
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User Reviews
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Frequently Asked Questions
What is Jan?
Jan is an open-source AI chat application and autonomous agent that runs 100% offline on your devices, giving you full privacy and control.
How does Jan differ from other AI tools?
Unlike typical assistants, Jan is built to act as an autonomous agent that can handle complex, long-running tasks end-to-end without constant supervision.
What platforms is Jan available on?
Jan is available on desktop (Windows, macOS, Linux), in the browser, with a browser extension coming soon, and it offers Jan Server capabilities.
Does Jan require an internet connection?
No. Once you download a local model, Jan works completely offline. You can optionally connect to cloud models if you choose.
Which AI models can I use with Jan?
You can run local open-source LLMs like Llama3, Gemma3, and Mistral, import GGUF files, or connect to OpenAI, Anthropic, Mistral, and Groq via API keys.
Is Jan truly open source?
Yes. Jan is open source under the AGPLv3 license and is built by a global community with thousands of contributions.
How can I customize Jan?
Use Jan’s extensions API (similar to VSCode/Obsidian) to build custom features, and tailor model behavior with assistant instructions and parameters.
Does Jan collect or sell my data?
No. Jan stores data locally by default and does not collect or sell your data. Anonymous usage stats are optional.
What makes up the Jan product suite?
Jan includes desktop, browser, and server apps plus in-house models: Jan‑v2 (multimodal long-horizon agent), Jan‑v1 (with web search), and Ichigo (speech AI).
How do I get started with Jan?
Download Jan, add a local model or connect a cloud model via API key, and start chatting. See the Quick Start guide for setup details.