Mistral AI
In plain wordsEurope's best-known builder of large AI language models, a Paris start-up dating from 2023 whose chatbot is called Le Chat. Many of its models are free for anyone to download and run.
A French AI company that develops large language modelslarge language model, n.: A computer program trained on enormous amounts of text to predict the words that come next. At vast scale, that simple skill lets it chat, answer questions, translate, summarize and write code. and the Le Chat assistant, and the most prominent European developer of frontier-scale models. It became known for compact, efficient models released as open weights under the permissive Apache 2.0 license — Mistral 7B (September 2023) and Mixtral 8x7B (December 2023), a sparse mixture of expertsmixture of experts, n.: A way to build very large AI models cheaply: the model contains many specialist sub-networks, and for each word only a few are switched on, picked by a small dispatcher network. model that popularized the architecture among open models — alongside proprietary models for business customers, the Magistral reasoning modelsreasoning model, n.: An AI model trained to work through a problem step by step in hidden 'thinking' text before it answers. Letting it think longer generally makes it better at math, coding and planning. (2025) and the Mistral 3 family (December 2025). In 2023 it argued, alongside the French government, for lighter treatment of foundation models in the EU AI ActEU AI Act, prop. n.: The European Union's law on artificial intelligence, the first broad AI law anywhere: it bans some uses, sets strict checks for risky ones and puts duties on the makers of the biggest AI models.. It presents itself as a supplier of European sovereign AIsovereign AI, n.: A country's ability to build and run AI on its own terms, so that the computers, models and know-how it relies on cannot be withheld or dictated by foreign companies or governments. and is building its own data centers. The Dutch lithography company ASMLASML, prop. n.: A Dutch maker of the giant machines that print circuit patterns onto chips. It alone can build the extreme-ultraviolet models on which today's most advanced chips, including AI chips, depend. became its largest shareholder in September 2025.
Origin
Founded in Paris in April 2023 by Arthur Mensch, formerly of Google DeepMind and a co-author of the Chinchilla paper, and Guillaume Lample and Timothée Lacroix, formerly of Meta's FAIR lab and co-authors of the original LLaMA paper.
Related
- open-weight modelopen-weight model, n.: An AI model whose trained internal numbers are published for anyone to download and run on their own computers, even if the data and code used to make it stay private.
- mixture of expertsmixture of experts, n.: A way to build very large AI models cheaply: the model contains many specialist sub-networks, and for each word only a few are switched on, picked by a small dispatcher network.
- EU AI ActEU AI Act, prop. n.: The European Union's law on artificial intelligence, the first broad AI law anywhere: it bans some uses, sets strict checks for risky ones and puts duties on the makers of the biggest AI models.
- sovereign AIsovereign AI, n.: A country's ability to build and run AI on its own terms, so that the computers, models and know-how it relies on cannot be withheld or dictated by foreign companies or governments.
- ASMLASML, prop. n.: A Dutch maker of the giant machines that print circuit patterns onto chips. It alone can build the extreme-ultraviolet models on which today's most advanced chips, including AI chips, depend.
- LlamaLlama, prop. n.: A family of AI language models from Meta, first released in 2023, whose trained settings can be downloaded and run by anyone, making them the foundation for thousands of other AI projects.
Mentioned in
ASMLASML, prop. n.: A Dutch maker of the giant machines that print circuit patterns onto chips. It alone can build the extreme-ultraviolet models on which today's most advanced chips, including AI chips, depend., CohereCohere, prop. n.: A Canadian AI company, founded in Toronto in 2019, that builds language models and search tools for businesses and governments rather than consumer chatbots.