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Alternatives to Jan

Open source local-first ChatGPT alternative

Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

#2 of 7 in Local LLM runners

Jan ranks #2 of 7 in Local LLM runners, with an Alt Score of 93. It is licensed under Apache-2.0, free from Free and available on Windows, macOS and Linux. 12 of 12 checklist rows are verified against a public source.

Most compared with LocalAILM Studiollama.cpp
Official site Suggest an edit Data history Work on Jan? Claim this page
Who it's for

Developers, privacy-conscious users, and anyone who wants to run LLMs on their own machine instead of sending data to a cloud API — no account or internet connection required.

What you get

A free, open-source desktop chat app (Windows, Mac, Linux) for running open-source LLMs (Llama, Mistral, Qwen, Gemma, DeepSeek, and others) locally. It includes a built-in, OpenAI-compatible API server so other apps can point at your machine instead of OpenAI's. You can also plug in cloud providers like OpenAI, Anthropic, or Gemini within the same interface if you choose to.

How it works

Jan runs models locally using the llama.cpp inference engine, downloading open-weight models (GGUF format) to your computer so conversations and inference happen entirely offline, with no data sent to a server unless you explicitly connect a cloud model.

Why people leave Jan

Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.

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Ranked alternatives

Ordered by Alt Score. Click any score to see the breakdown.

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01

Self-hosted OpenAI-compatible API for local models.

MIT LinuxmacOS
Alt Score

Alt Score · 96

How this alternative ranks. How it works →

Verified coverage 90%96
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

02

Desktop app for local LLMs with a friendly UI.

Proprietary (closed source); lms CLI and TypeScript SDK are MIT WindowsmacOSLinux
Alt Score

Alt Score · 85

How this alternative ranks. How it works →

Verified coverage 90%83
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

03

The reference C++ inference engine for GGUF models.

MIT WindowsmacOSLinux
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

04

Run open-weight models locally with one command.

MIT macOSWindowsLinux
Alt Score

Alt Score · 78

How this alternative ranks. How it works →

Verified coverage 90%75
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

05

Local chatbot runner from Nomic.

MIT WindowsmacOSLinux
Alt Score

Alt Score · 70

How this alternative ranks. How it works →

Verified coverage 90%67
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

06

Self-hosted chat UI for local and API models.

Open WebUI License (BSD-3-Clause-based with branding restriction) LinuxWindowsmacOSWeb
Alt Score

Alt Score · 66

How this alternative ranks. How it works →

Verified coverage 90%62
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Feature comparison

Rows come from the Local LLM runners checklist (16 rows). Human-verified cells only. ? means the value has not been verified.

Comparing Jan LocalAI × LM Studio × llama.cpp × Ollama × GPT4All ×
+ Add app
Open WebUI
Local LLM runners checklist JanLocalAILM Studiollama.cppOllamaGPT4All
Pricing model
Starts at
License
Platforms
GGUF model support
GPU acceleration
OpenAI-compatible API server
Built-in model library
Chat UI included
CLI
Multi-modal (vision) support
Quantization options
Runs fully offline
Open source
Model fine-tuning
Hardware requirements shown
verified pending unknown (?) Click any cell to view its source or propose a value
Sources & verification 17

Every fact and feature listed for Jan is verified against its own pages. Each alternative is sourced on its own page.

FAQ

Yes. LocalAI, LM Studio and llama.cpp have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.

LocalAI, LM Studio and llama.cpp — every license claim links its source.