{"id":13454,"date":"2026-05-22T20:32:20","date_gmt":"2026-05-22T20:32:20","guid":{"rendered":"https:\/\/comparateur-ia.io\/outils-ia\/jan\/"},"modified":"2026-05-22T20:32:20","modified_gmt":"2026-05-22T20:32:20","slug":"jan","status":"publish","type":"outil_ia","link":"https:\/\/comparateur-ia.io\/en\/outils-ia\/jan\/","title":{"rendered":"Jan"},"content":{"rendered":"\n\n<p class=\"tool-description\">Jan is an __open source alternative to ChatGPT__ that runs entirely on your machine. It lets you run __AI models locally__ (Llama 3, Gemma 3, Mistral\u2026) without sending your data to remote servers. Jan includes an __OpenAI-compatible API__ server, MCP integration for agentic capabilities, and its own models like Jan-v2 (multimodal). Available on Windows, Mac and Linux, Jan is the ideal solution for those who prioritize __data privacy and sovereignty__.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">What is Jan?<\/h2>\n\n\n\n\n\n<p>Jan is an open source desktop application that lets you run language models directly on your machine. It relies on open source models like Llama 3, Gemma 3, Mistral, and others in GGUF format. Jan also includes its own models like Jan-v2 (multimodal with vision) and Jan-v1 (with web search). The application is available free on GitHub.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Main Features<\/h2>\n\n\n\n\n\n<p>Jan offers a set of features designed for privacy and flexibility. The chat interface is intuitive and resembles ChatGPT&#8217;s. A VS Code-style extension system allows you to add features. The local OpenAI-compatible API server lets you integrate Jan with other tools. Support for NVIDIA GPUs and Apple M-series processors accelerates local model inference. MCP integration adds advanced agentic capabilities.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Use Cases<\/h2>\n\n\n\n\n\n<p>Jan is ideal for professionals handling sensitive data: lawyers, doctors, consultants, researchers. It&#8217;s also great for developers wanting a local AI server for their projects, enterprises with strict compliance constraints, and enthusiasts wanting to experiment with open source models without relying on a subscription.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Advantages<\/h2>\n\n\n\n\n\n<p>Jan&#8217;s main advantage is absolute privacy guarantee: no data leaves your machine. The absence of subscription eliminates recurring costs. OpenAI API compatibility simplifies integration into existing ecosystems. GPU support optimizes performance for users with the right hardware.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Pricing<\/h2>\n\n\n\n\n\n<p>Jan is completely free and open source. No paid plan is required to access core features. An optional 100% offline voice dictation feature is available for $24 as a one-time payment on Mac. Open source models are downloadable for free.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n\n\n<p>Jan is the reference solution for users who want the power of generative AI without compromising on privacy. Its open source and 100% local approach makes it a unique and valuable tool in the AI assistant ecosystem.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Strengths<\/h2>\n\n\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>100% local<\/strong> operation: no data leaves your machine<\/li>\n\n<li>Support for many open source models: <strong>Llama 3, Gemma 3, Mistral<\/strong><\/li>\n\n<li><strong>OpenAI-compatible API<\/strong> server for integration with other tools<\/li>\n\n<li>Intuitive interface available on <strong>Windows, Mac and Linux<\/strong><\/li>\n\n<li><strong>MCP<\/strong> integration for advanced agentic capabilities<\/li>\n\n<li>Entirely <strong>free and open source<\/strong>, no subscription<\/li>\n\n<\/ul>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Limitations<\/h2>\n\n\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>Requires a <strong>powerful computer<\/strong> (min. 8 GB of RAM)<\/li>\n\n<li>Local models perform less well than <strong>premium cloud LLMs<\/strong><\/li>\n\n<li>Initial setup more complex for <strong>non-technical users<\/strong><\/li>\n\n<li>Models take up <strong>multiple gigabytes<\/strong> of hard drive space<\/li>\n\n<\/ul>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n\n\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Does Jan require an internet connection?<\/summary>\n\n\n\n<p>No, Jan runs entirely locally on your computer. An internet connection is only needed to download the AI models initially. After that, everything works offline.<\/p>\n\n\n\n<\/details>\n\n\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Which AI models can I use with Jan?<\/summary>\n\n\n\n<p>Jan supports open source models in GGUF format: Llama 3, Gemma 3, Mistral, Phi, and many others. You can also connect cloud APIs like OpenAI or Anthropic if you wish.<\/p>\n\n\n\n<\/details>\n\n\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What are the hardware requirements to use Jan?<\/summary>\n\n\n\n<p>Jan requires a minimum of 8 GB of RAM and a processor with AVX2 support. An NVIDIA GPU or Apple M-series processor significantly improves performance of local models.<\/p>\n\n\n\n<\/details>\n\n\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Is Jan truly free?<\/summary>\n\n\n\n<p>Yes, Jan is completely free and open source. No subscription is required. The only exception is an optional offline voice dictation feature at $24 as a one-time payment on Mac.<\/p>\n\n\n\n<\/details>\n\n\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Is Jan compatible with tools that use the OpenAI API?<\/summary>\n\n\n\n<p>Yes, Jan includes a local API server compatible with OpenAI format. This means you can connect it to many tools that support the OpenAI API while keeping your data local.<\/p>\n\n\n\n<\/details>\n\n","protected":false},"excerpt":{"rendered":"<p>Jan is an open source AI assistant that runs 100% locally on your computer, with no internet connection or data sending, compatible with Windows, Mac and Linux.<\/p>\n","protected":false},"author":2,"featured_media":28456,"template":"","meta":{"cia_url_outil":"https:\/\/jan.ai","cia_affiliate_url":"","cia_prix":"Free","cia_devise":"USD","cia_date_test":"","cia_highlight":"Your private AI assistant, 100% offline, no subscription.","cia_logo":"\/partners\/jan-ai.png","cia_og_image":"","cia_partner":"jan-ai","cia_json_id":"jan-ai","cia_verdict":"Jan is a remarkable solution for anyone who refuses to entrust their data to cloud services. Its __100% offline__ and __open source__ philosophy makes it a unique tool in the AI assistant landscape. Compatibility with flagship models like __Llama 3__, Gemma 3 or Mistral guarantees solid performance for most daily use cases. The __OpenAI-compatible API__ server opens many possibilities for integration with third-party tools. However, non-technical users may be confused by the initial setup and hardware requirements. Jan is particularly relevant for professionals, researchers and enterprises that must respect strict __data privacy__ constraints. It's today one of the best local alternatives to ChatGPT, and its continuous evolution makes it an open source project to follow closely.","cia_avantages":"[\"__100% local__ operation: no data leaves your machine\",\"Support for many open source models: __Llama 3, Gemma 3, Mistral__\",\"__OpenAI-compatible API__ server for integration with other tools\",\"Intuitive interface available on __Windows, Mac and Linux__\",\"__MCP__ integration for advanced agentic capabilities\",\"Entirely __free and open source__, no subscription\"]","cia_avantages_court":"[\"100% local, aucune donnu00e9e envoyu00e9e\",\"Llama 3, Gemma 3, Mistralu2026\",\"Serveur API compatible OpenAI\",\"Windows, Mac et Linux\",\"Gratuit et open source\"]","cia_inconvenients":"[\"Requires a __powerful computer__ (min. 8 GB of RAM)\",\"Local models perform less well than __premium cloud LLMs__\",\"Initial setup more complex for __non-technical users__\",\"Models take up __multiple gigabytes__ of hard drive space\"]","cia_inconvenients_court":"[\"Exige du matu00e9riel puissant\",\"Moins performant que les LLMs cloud\",\"Configuration initiale technique\",\"Modu00e8les lourds (3-15 Go)\"]","cia_ideal_pour":"[\"__Professionnels__ soucieux de la confidentialitu00e9\",\"__Du00e9veloppeurs__ souhaitant un serveur IA open source local\",\"__Entreprises__ soumises u00e0 des contraintes de conformitu00e9\",\"__Passionnu00e9s__ qui testent des modu00e8les open source en local\"]","cia_pas_pour":"[\"__Utilisateurs__ avec un ordinateur peu puissant (< 8 Go RAM)\",\"__Du00e9butants__ cherchant une solution pru00eate u00e0 l'emploi\",\"__Besoins__ de modu00e8les propriu00e9taires premium (GPT-4ou2026)\",\"__Equipes__ ayant besoin d'accu00e8s cloud partagu00e9\"]","cia_faq":"[{\"q\":\"Does Jan require an internet connection?\",\"a\":\"No, Jan runs entirely locally on your computer. An internet connection is only needed to download the AI models initially. After that, everything works offline.\"},{\"q\":\"Which AI models can I use with Jan?\",\"a\":\"Jan supports open source models in GGUF format: Llama 3, Gemma 3, Mistral, Phi, and many others. You can also connect cloud APIs like OpenAI or Anthropic if you wish.\"},{\"q\":\"What are the hardware requirements to use Jan?\",\"a\":\"Jan requires a minimum of 8 GB of RAM and a processor with AVX2 support. An NVIDIA GPU or Apple M-series processor significantly improves performance of local models.\"},{\"q\":\"Is Jan truly free?\",\"a\":\"Yes, Jan is completely free and open source. No subscription is required. The only exception is an optional offline voice dictation feature at $24 as a one-time payment on Mac.\"},{\"q\":\"Is Jan compatible with tools that use the OpenAI API?\",\"a\":\"Yes, Jan includes a local API server compatible with OpenAI format. This means you can connect it to many tools that support the OpenAI API while keeping your data local.\"}]","cia_languages":"[\"fr\",\"en\"]","cia_read_more":"[{\"href\":\"\/guides\/alternatives-chatgpt\",\"title\":\"Meilleures alternatives u00e0 ChatGPT\",\"desc\":\"Du00e9couvrez les outils IA qui peuvent remplacer ChatGPT dans votre workflow.\"},{\"href\":\"\/comparatifs\/ia-assistants\",\"title\":\"Comparatif des assistants IA\",\"desc\":\"Comparez Jan avec les meilleurs assistants IA du marchu00e9.\"}]","cia_seo_title":"","cia_seo_description":"","cia_seo_h1":"","cia_review_seo_title":"","cia_review_seo_desc":"","cia_created_at":"2026-03-22","cia_updated_at":"2026-03-22","cia_note_globale":4.6,"cia_note_count":74,"cia_prix_mensuel":0,"cia_ranking":999,"cia_verified":true,"cia_featured":false,"cia_selection":false,"cia_is_affiliate":false,"cia_has_review":true,"cia_trial":true,"cia_langue_fr":true,"cia_api_disponible":false,"footnotes":""},"categorie-ia":[189],"tag-ia":[387,181],"tarification":[14],"niveau-utilisateur":[],"metier":[],"class_list":["post-13454","outil_ia","type-outil_ia","status-publish","has-post-thumbnail","hentry","categorie_ia-assistants","tag_ia-assistant-ia-en","tag_ia-knowledge-base","tarification-gratuit"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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