FRENES

Local LLM tools

Jan: review, pricing, data and alternatives

Jan helps people run models on their computers and chat with local or remote models. It offers model downloads, an OpenAI API-compatible server, and connections between assistants and external tools. A free tier exists. Access and transparency score: 68/100, #4 of 6 in its category.

Free tierOpen sourceAPILocal processing

What is Jan?

Jan helps people run models on their computers and chat with local or remote models. It offers model downloads, an OpenAI API-compatible server, and connections between assistants and external tools.

According to its documentation, Jan lets you:

  • run models on your computer
  • chat with local or remote models
  • download models from a catalog
  • expose a server compatible with the OpenAI API
  • connect assistants to external tools

We file it under Local LLM tools, the category of tools to run a model on your own machine, and it also overlaps with general AI chatbots and aI agent builders. The category lists 6 verified tools on this site.

The publisher is Menlo Research Pte Ltd.

Who is it for?

It is mostly useful to these profiles: developers and researchers. The need it covers is simple to state: run a model on your own machine.

Jan is a good candidate if:

  • you want to try before paying
  • you plan to connect it to your tools or automations through its API
  • you must keep your data in Europe or on your own machine
  • you want to read the code or host it yourself

Before deciding, run a trial on a real task and measure the time saved: it is the only criterion that really counts.

How much does Jan cost?

Pricing model: open source (public code). Basic use costs nothing.

To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.

Data and privacy

According to its privacy policy, data is processed on your device (local processing).

Local processing is the most favourable case: your files do not leave your machine for the features concerned.

Exporting your content: yes (details on the official site). Being able to get your data back makes switching tools easier later.

Three habits apply to every AI tool:

  • turn off the use of your content for training if the option exists
  • use a work account separate from your personal account
  • review everything the tool produces before publishing or sending it

Platforms, languages and API

Jan runs on: Windows, macOS, Linux, and API.

Interface languages: Japanese.

A public API lets you call it from your own programs or an automation tool, and plug it into an AI agent.

The source code is public: janhqjanhq/jan.

How we scored it

Our 68/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.

Jan score breakdown
CriterionPointsWhat counts
Access15/30free tier, published price, French interface
Openness30/30API, data export, open code
Trust23/40identified publisher, declared hosting, age, presence in reference lists
LM StudioLM Studio : 9090PyGPTPyGPT : 7373OllamaOllama : 7171JanJan : 6868GPT4AllGPT4All : 6565MstyMsty : 6363
Jan ranks #4 of 6. The category's top ten are shown.

The full calculation is explained on our method page.

Comparison with alternatives

Jan against other tools in the local LLM tools category:

Comparison within the category
ToolFreeEntry priceAPIScore
JanYesnot publishedYes68
LM StudioYes$20 per monthYes90
PyGPTYesnot published–73
OllamaYes$20 per monthYes71
GPT4AllYesnot publishedYes65
MstyYes$149 per year–63

Verdict

Jan is a decent option; compare its price and terms with the category leaders.

Strengths

  • Free tier to try it
  • Public API
  • Public source code
  • Local processing available
  • Available on many platforms

Frequently asked questions

Is Jan free?

Yes, a free plan exists, with usage limits.

Where is Jan data stored?

According to the publisher, on your device (local processing).

Does Jan have an API?

Yes, a public API is documented.

What are the alternatives to Jan?

In the same category: LM Studio, PyGPT, Ollama, and GPT4All.

Jan or LM Studio: which one to choose?

Our score is 68/100 for Jan and 90/100 for LM Studio. Try both on the same task before paying.

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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score