Jan runs an offline AI chat assistant on a personal computer as an open-source ChatGPT alternative.
Open source
24 alternativesLeon
Run Leon, an open-source personal assistant, on a server managed by the user.
About Leon
Leon is an open-source personal assistant designed to run on a server managed by the user. It is built with Node.js, Python, and artificial intelligence concepts, and is released under the MIT license. The project code is available on GitHub.
With Leon, you can automate routine tasks and add skills or modules to extend what it does. It uses concepts such as natural language processing, text-to-speech, and speech-to-text to handle requests. Users can choose from several cloud speech providers or use offline options, and can install Leon through the Leon CLI and follow documentation to set it up.
Leon suits people who are comfortable running and maintaining their own server. It also suits developers and technical users who want control over their data and the ability to create custom skills.
Key features
- Runs on a server managed by the user
- Modular architecture for custom skills and modules
- Uses natural language processing, TTS, and STT
- Works with multiple cloud and offline speech providers
- Installs through Leon CLI with setup docs
Best for: Technical users who want to run an open-source assistant on their own server benefit most.
Good for
- Open-source under MIT license
- User controls server and data
- Modular skills can be added or created
- Choice of cloud or offline speech tools
Watch out for
- Requires running and maintaining own server
- Setup involves command-line installation and documentation
Leon at a glance
- Website
- getleon.ai
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Leon alternatives
Tools and sites you could use instead, ranked by how closely they match.
py-vectara-agentic is a Python library for creating AI assistants with Vectara using agentic retrieval-augmented generation.
Open source
24 alternatives
Open WebUI provides a self hosted platform for connecting AI models and extending the interface with code.
Open source
24 alternatives
Lollms Webui provides a web user interface for large language and multimodal systems.
Open source
24 alternatives
Intelli builds chatbots and agents from user-defined intents and model choices.
Open source
24 alternatives
Pipecat provides an open-source framework for developing real-time voice agents and multimodal AI applications.
Open source
24 alternativesPopular in AI Chatbots & Assistants
Well-known listings from the same topic.
Lumolumo.proton.meMicrosoft Copilotcopilot.microsoft.comLearn Aboutlearning.google.com/experiments/learn-aboutEidoloneidolonai.comFlowHuntflowhunt.ioPine AI19pine.ai
Leon FAQ
What is Leon?
Leon is an open-source personal assistant that runs on a server managed by the user. It is built with Node.js, Python, and AI concepts.
How do I install Leon?
Leon is installed through the Leon CLI and configured by following the project documentation.
Is Leon open source?
Yes. Leon is released under the MIT license and its code is available on GitHub.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.