Jan
Open-source alternative to ChatGPT for offline use on your computer.
Pricing
Free tier
Flat rate
Adoption
↗RisingLicense
Open Source
Data freshness
Verified · Jul 16, 2026Overview
What is Jan?
Jan is an open source language model that allows users to run a full-featured AI assistant locally, without internet connectivity. It's designed for developers and enthusiasts who need a powerful AI tool but prefer or require local execution.
Key differentiator
“Jan stands out as a fully local, open-source alternative for those needing AI capabilities without relying on cloud services, offering unparalleled privacy and control over data.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
API requires Python-specific patterns, TypeScript SDK is community-maintained
v0.1 to v0.2 migration required rewriting chain definitions
Community contributions are sparse, leading to fewer plugins or connectors available compared to more established frameworks.
Running Jan locally can consume significant CPU and memory resources, potentially impacting performance on less powerful machines.
Fit analysis
Who is it for?
✓ Best for
Teams working in environments with limited or no internet connectivity.
Developers interested in experimenting with AI locally without cloud dependencies.
Users concerned about privacy and data security who prefer offline solutions.
✕ Not a fit for
Projects requiring real-time updates from the latest models.
Applications that need to scale across multiple devices or environments.
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Works well with
Integrations
Next step
Get Started with Jan
Step-by-step setup guide with code examples and common gotchas.