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Mistral AI

Mistral AI is a Paris-based company founded in April 2023. It builds open-weight and commercial large language models, the Le Chat assistant and the Vibe coding agent, and it has grown quickly through several large funding rounds.

Founded 2023Website mistral.ai Era Generative AI for everyone

2025 · 14 20232026
Events per year
29Models & products39Events3People

What it is

Mistral AI is a French artificial intelligence company headquartered in Paris. It builds large language models, which are programs trained on very large amounts of text so that they can read and write natural language. Some of its models are released as open-weight models, meaning the trained weights can be downloaded and run by anyone. Others are commercial models that customers reach through an API (application programming interface), a standard way for one piece of software to call another. The company states its mission as making frontier AI open to all and helping to solve the world's hardest problems together. [1] Wikipedia reports that the company had more than 1,000 employees in 2026. [2]

Origins

Mistral was founded in April 2023 by Arthur Mensch, who became chief executive and had previously worked at DeepMind. Guillaume Lample became chief science officer and Timothée Lacroix became chief technology officer. Lample and Lacroix had both worked at Meta before Mistral. [1][2]

The company's own timeline is short. It hired its first employee on 5 June 2023 and dated its seed round to 13 June 2023. Its first model, Mistral 7B, came out on 27 September 2023, and its Series A followed on 11 December 2023. Mistral Large was released on 26 February 2024, and the Series B came on 11 June 2024. The company reached its 100th employee on 30 September 2024. [1]

Funding

Mistral has raised money several times, and each round has been larger than the one before. The seed round was €105 million, with investors including Lightspeed, Eric Schmidt, Xavier Niel and JCDecaux. [2] In December 2023 the company raised about €385 million at a valuation above €2 billion. [2] In June 2024 it raised €600 million at a valuation of €5.8 billion. [2]

On 9 September 2025 Mistral raised a €1.7 billion Series C led by ASML, at an €11.7 billion post-money valuation. Post-money valuation means the value of the company after the new money has been added. ASML also formed a strategic partnership with the company. [3] In September 2026 it raised a €3 billion Series D led by Samsung Electronics. The round was co-led by the Scaleup Europe Fund, which is managed by EQT, and by PSG Equity. The post-money valuation was more than €21 billion. Mistral described the round as the largest equity round ever completed by a European technology company. [4]

Partnerships and infrastructure

On 26 February 2024 Microsoft and Mistral announced a multi-year partnership. It covers Azure supercomputing, distribution of Mistral's premium models on Azure, and joint research and development. [5] Wikipedia reports a $16 million Microsoft investment. [2]

On 11 June 2025 Mistral announced Mistral Compute, an AI infrastructure offering built with NVIDIA. Its launch partners included BNP Paribas, Orange, SNCF, Thales and Veolia. [6] Mistral's first acquisition was Koyeb, a Paris AI cloud startup, which was reported in February 2026. [2] On 23 May 2026 the company agreed to acquire Emmi AI, an Austrian physics-AI company. [8]

Models and products

Mistral's open-weight models include Mistral 7B, Mixtral, Mistral NeMo, Pixtral 12B, Mistral Small 3 and 4, and Mistral Large 3. Most of them are released under the Apache 2.0 licence, which allows broad use with few restrictions. [7][2] Its commercial premier models are served through its API, first on La Plateforme and later on Mistral AI Studio. [7][2]

The product range covers several kinds of work. It includes the Le Chat assistant, the coding models Codestral and Devstral, the Mistral Vibe coding agent, the Pixtral vision models, the Magistral reasoning models, the Voxtral speech models and Mistral OCR. [2][9]

The flagship line began with Mistral Large in February 2024. Mistral Large 2, released in July 2024, has 123 billion parameters. Mistral Large 3, released in December 2025, is a 675-billion-parameter mixture-of-experts model under Apache 2.0. A mixture-of-experts model is built from many smaller sub-networks, and only some of them are used for each token of text. Mistral Large 4, dated October 2026, is described as having about one trillion parameters. [2]

Its place in the field

Mistral combines two approaches. It publishes open weights that anyone can run, and it also sells closed commercial models through an API. Its 2026 funding announcement described the aim of making sovereign, open-weight AI the technology frontier. [4] The company's own history shows how fast the field moves. Its first model arrived less than five months after the company was founded. [1][3]

CapabilitiesLarge language models

TechniquesFoundation models

ApplicationsEnterprise

Ecosystem & regionOpen sourceEurope

20269

  1. ReleaseMistral AI unveils Mistral Large 4, a trillion-parameter open-weight model

    On 6 October 2026 Mistral AI opened a public preview of Mistral Large 4, a model with about 1 trillion total parameters. On 29 October 2026 it released open weights of an improved version.

  2. FundingMistral AI raises €3 billion led by Samsung at over €21 billion valuation

    On 8 September 2026 Mistral AI announced a €3 billion Series D led by Samsung Electronics, valuing the company at more than €21 billion after the round.

  3. ReleaseMistral AI introduces Robostral Navigate for robots

    On 8 July 2026 Mistral AI introduced Robostral Navigate, an 8-billion-parameter model that steers robots from camera images and spoken-style instructions, trained entirely in simulation and scoring 76.6% on a standard navigation benchmark.

  4. UpdateMistral merges Le Chat into Vibe, a unified agent for work and code

    On 28 May 2026 Mistral merged Le Chat into Vibe: one agent and one licence spanning work and code, adding Work Mode and sandboxed Code Mode, four tiers, and the retirement of the old Chat mode.

  5. AcquisitionMistral AI agrees to acquire physics-AI company Emmi AI

    On 23 May 2026 Mistral AI said it had agreed to acquire Emmi AI, an Austrian physics-AI company whose large engineering models simulate power grids, injection moulding and car safety tests; more than 30 staff, including co-founder Johannes Brandstetter, are joining.

  6. ReleaseMistral AI releases open-weight Mistral Medium 3.5

    Mistral Medium 3.5 is a dense 128B model released by Mistral AI on 28 April 2026, with a 256K context, text and image input, and open weights under a modified MIT licence.

  7. ReleaseMistral AI releases Voxtral TTS, its first text-to-speech model

    On 23 March 2026 Mistral AI released Voxtral TTS, a 4B text-to-speech model with voice cloning from three seconds of audio, open weights under a non-commercial licence, and API pricing of $0.016 per 1,000 characters.

  8. ReleaseMistral AI releases Mistral Small 4

    On 16 March 2026, Mistral AI released Mistral Small 4, a 119B mixture-of-experts model under Apache 2.0 that combines reasoning, image input and agentic coding in one model.

  9. AcquisitionMistral AI acquires Koyeb

    In February 2026, Mistral AI acquired Koyeb, a Paris-based startup offering high-performance serverless infrastructure. It was Mistral's first acquisition and brought 13 employees, with Koyeb's product and expertise to support environments such as sandboxes and MCP servers.

202514

  1. ReleaseMistral AI releases Devstral 2 and the Mistral Vibe CLI

    On 9 December 2025 Mistral AI released Devstral 2, a 123B dense coding model, and the smaller Devstral Small 2, alongside Mistral Vibe, an open-source command-line coding agent built on them.

  2. ReleaseMistral AI releases the Mistral 3 family, including Mistral Large 3

    On 2 December 2025 Mistral AI released the Mistral 3 family: Mistral Large 3, a 675B mixture-of-experts model, and three Ministral 3 models, all under Apache 2.0.

  3. ReleaseBlack Forest Labs releases FLUX.2

    On 25 November 2025 Black Forest Labs released the FLUX.2 image models, with hosted pro and flex variants and the open-weight 32B dev model. The smaller klein models followed in January 2026.

  4. FundingMistral AI raises €1.7 billion led by ASML

    Mistral AI announced a €1.7 billion Series C on 9 September 2025, valuing the company at €11.7 billion post-money. ASML led the round and formed a strategic partnership with Mistral.

  5. UpdateLe Chat adds Deep Research, voice and Think modes

    On 17 July 2025 Mistral AI added Deep Research to its Le Chat assistant as a preview, alongside a voice mode built on the Voxtral speech model, a Think mode built on the Magistral reasoning model, grouped chats called Projects, and image editing made with Black Forest Labs.

  6. ReleaseMistral AI releases Voxtral speech models

    On 15 July 2025 Mistral AI released Voxtral Small and Voxtral Mini, two Apache-licensed speech models that transcribe up to 30 minutes of audio, answer questions about recordings and produce structured summaries.

  7. MilestoneMistral AI announces Mistral Compute with NVIDIA

    On 11 June 2025 Mistral AI announced Mistral Compute, an AI infrastructure offering that sells GPUs, orchestration, APIs and services as bare metal or managed PaaS, built with NVIDIA hardware and reference architectures.

  8. ReleaseMistral AI releases Magistral, its first reasoning models

    Mistral AI released Magistral Small and Magistral Medium on 10 June 2025, its first reasoning models. Medium scored 73.6% on AIME 2024, and Small, a 24B model, shipped under Apache 2.0.

  9. ReleaseMistral AI and All Hands AI release Devstral

    On 21 May 2025 Mistral AI and All Hands AI released Devstral, an openly licensed coding model built to work as an agent on real software issues, scoring 46.8% on SWE-Bench Verified.

  10. ReleaseMistral AI launches Mistral Medium 3

    On 7 May 2025 Mistral AI released Mistral Medium 3, priced at $0.40 per million input tokens, and claimed at least 90% of Claude Sonnet 3.7's benchmark performance at about 8x lower cost.

  11. ReleaseMistral AI releases Mistral Small 3.1 with image input

    On 17 March 2025 Mistral AI released Mistral Small 3.1, an Apache 2.0 model that adds image understanding and a 128K context window while running on a single RTX 4090 or a 32GB Mac.

  12. ReleaseMistral AI launches Mistral OCR

    On 6 March 2025 Mistral AI launched Mistral OCR, a document-understanding API that it said processes up to 2,000 pages per minute, handles thousands of scripts and languages, and scored above GPT-4o on its benchmark.

  13. UpdateMistral relaunches Le Chat with mobile apps and a Pro tier

    On 6 February 2025, Mistral AI released iOS and Android apps for its Le Chat assistant, alongside a $14.99 Pro tier, a Team plan and an Enterprise preview, adding fast answers, code execution and image generation.

  14. ReleaseMistral AI releases Mistral Small 3 under Apache 2.0

    On 30 January 2025 Mistral AI released Mistral Small 3, a 24-billion-parameter model under the Apache 2.0 licence, scoring over 81% on MMLU and running at about 150 tokens per second.

202412

  1. ReleaseMistral AI releases Pixtral Large and upgrades Le Chat

    On 18 November 2024 Mistral AI released Pixtral Large, a 124-billion-parameter open-weight multimodal model built on Mistral Large 2, alongside Mistral Large 24.11 and a Le Chat update adding search, Canvas, image generation and agents.

  2. UpdateLe Chat adds web search, Canvas and image generation

    On 18 November 2024 Mistral AI added web search with citations, a Canvas workspace, image generation and reusable agents to its Le Chat assistant, all free during the beta.

  3. ReleaseMistral AI releases Ministral 3B and 8B for edge devices

    On 16 October 2024 Mistral AI released Ministral 3B and 8B, small models built for on-device and edge use, with 128K-token context, low per-token API prices and research access to the 8B Instruct weights.

  4. ReleaseMistral AI releases Pixtral 12B, its first multimodal model

    On 17 September 2024 Mistral AI released Pixtral 12B, an open-weight model pairing a 400M vision encoder with a 12B decoder and scoring 52.5% on MMMU and 90.7 on DocVQA.

  5. ReleaseMistral AI releases Mistral Large 2

    On 24 July 2024 Mistral AI released Mistral Large 2, a 123-billion-parameter dense language model with a 128K context window, whose weights were published on Hugging Face under a research licence and which launched across several cloud platforms.

  6. ReleaseMistral AI and NVIDIA release Mistral NeMo 12B

    On 18 July 2024 Mistral AI released Mistral NeMo, a 12B language model built with NVIDIA, with a 128K-token context window, a new multilingual tokenizer called Tekken, FP8-aware training and Apache 2.0 weights.

  7. ReleaseMistral AI releases Codestral Mamba and Mathstral

    On 16 July 2024 Mistral AI released two specialised 7B open models: Codestral Mamba, built on the Mamba architecture for code, and Mathstral, a math model made with Project Numina.

  8. FundingMistral AI raises €600 million at a €5.8 billion valuation

    On 11 June 2024, Mistral AI closed a €600 million Series B round led by existing investor General Catalyst, valuing the company at €5.8 billion. Lightspeed, Andreessen Horowitz, Cisco Systems and Nvidia also took part.

  9. ReleaseMistral AI releases Codestral, its first code model

    On 29 May 2024 Mistral AI released Codestral, a 22-billion-parameter open-weight code model trained on more than 80 programming languages, with a 32K context window and weights under a non-production licence.

  10. ReleaseMistral AI releases Mixtral 8x22B

    On 17 April 2024 Mistral AI announced Mixtral 8x22B, a sparse mixture-of-experts language model with 141 billion total but only 39 billion active parameters, released under Apache 2.0 with a 64K context window.

  11. ReleaseMistral AI launches Mistral Large and a partnership with Microsoft

    On 26 February 2024 Mistral AI released Mistral Large and Mistral Small, and announced a multi-year partnership with Microsoft that made Mistral Large available first on Azure AI. Le Chat, its assistant, launched in beta the same day.

  12. ReleaseMistral AI launches the Le Chat assistant

    On 26 February 2024, Mistral AI's API changelog announced Le Chat, a beta chat interface for talking to its models directly, released alongside the Mistral Large and Mistral Small models and new function calling and JSON mode features.

20234

  1. ReleaseMistral AI releases Mixtral 8x7B, an open mixture-of-experts model

    On 11 December 2023 Mistral AI released Mixtral 8x7B, an open-weight mixture-of-experts model that activates only part of its parameters for each word. It aimed to pair a large total capacity with lower compute per token.

  2. FundingMistral AI raises about €385 million in its Series A

    On 11 December 2023 Mistral AI announced a €385 million Series A — its second round in seven months — the same day it released the Mixtral 8x7B model and opened its API platform.

  3. ReleaseMistral AI releases Mistral 7B, its first open-weight model

    On 27 September 2023 Mistral AI released Mistral 7B, a 7.3-billion-parameter model with Apache 2.0 weights, less than five months after the company was founded. It was the start of the company's open-weight line.

  4. FundingMistral AI raises a €105 million seed round

    In June 2023 Mistral AI, founded two months earlier, raised €105 million in a seed round led by Lightspeed, reported as Europe's largest seed round, before it had released a product.

Models and products over time

29
  1. 2023
    • Sep 27, 2023 Mistral 7B Model

      Mistral AI's first model: a 7.3-billion-parameter language model released in September 2023 under the Apache 2.0 license, built to match much larger models on standard benchmarks.

    • Dec 11, 2023 Mixtral 8x7B Model

      An open-weight sparse mixture-of-experts language model from Mistral AI, released in December 2023: 46.7B total parameters but 12.9B used per token, a 32k-token context, and results above Llama 2 70B on most benchmarks.

  2. 2024
    • Feb 26, 2024 Le Chat (Vibe) Product

      Le Chat is Mistral AI's assistant, launched in beta on 26 February 2024. It gained web search, a Pro tier, Deep Research and other features over 2024 and 2025, and on 28 May 2026 it was merged into the Vibe agent.

    • Feb 26, 2024 Mistral Large Model

      Mistral Large is the French company Mistral AI's first flagship proprietary large language model, released on 26 February 2024 with a 32K-token context window, native fluency in five languages, and built-in function calling and JSON output.

    • Apr 17, 2024 Mixtral 8x22B Model

      A sparse mixture-of-experts language model from Mistral AI, released in April 2024 under the Apache 2.0 licence with 141 billion total parameters, of which 39 billion are active per token.

    • May 29, 2024 Codestral Model

      Codestral is Mistral AI's family of code models, first released in May 2024 as an open-weight 22B-parameter model with a 32K context window, followed by faster and longer-context versions aimed at IDE code completion.

    • Jul 16, 2024 Codestral Mamba Model

      Codestral Mamba is a 7B open code model from Mistral AI, released in July 2024, that swaps the Transformer for the Mamba state-space architecture to get linear-time inference.

    • Jul 16, 2024 Mathstral Model

      A 7-billion-parameter model released by Mistral AI on 16 July 2024 for mathematical and STEM reasoning, built on Mistral 7B, openly licensed, and now listed as deprecated.

    • Jul 18, 2024 Mistral NeMo Model

      Mistral NeMo is a 12-billion-parameter language model released by Mistral AI with NVIDIA in July 2024, notable for a 128K-token context window, a new multilingual tokenizer called Tekken, and an Apache 2.0 release.

    • Jul 24, 2024 Mistral Large 2 Model

      Mistral AI's second-generation flagship model, released in July 2024 with 123 billion parameters, a 128K-token context window, wide language and code coverage, and weights published under a research license.

    • Sep 17, 2024 Pixtral 12B Model

      Pixtral 12B is Mistral AI's first multimodal model, pairing a 12B language decoder with a 400M vision encoder. Released openly under Apache 2.0 in September 2024, it reads images at native resolution and was retired at the end of 2025.

    • Oct 16, 2024 Ministral 3B and 8B Model

      Ministral 3B and Ministral 8B are two small Mistral AI language models released on 16 October 2024 for on-device and edge use, offering long context, low API prices and, for the 3B, performance Mistral claimed beat its earlier 7B model.

    • Nov 18, 2024 Pixtral Large Model

      Pixtral Large is Mistral AI's open-weight multimodal model announced on 18 November 2024, built on Mistral Large 2, combining a 123B-parameter decoder with a 1B vision encoder and a 128K-token context window. It was retired in May 2026.

  3. 2025
    • Jan 30, 2025 Mistral Small 3 Model

      Mistral Small 3 is a 24-billion-parameter open-weight language model from Mistral AI, released in January 2025 under Apache 2.0 and tuned for low-latency inference on a single GPU or laptop.

    • Mar 6, 2025 Mistral OCR Model

      Mistral OCR is a document-understanding API released by Mistral AI on 6 March 2025 that reads text, tables, equations and embedded media across thousands of scripts and languages, and was later superseded by newer OCR versions.

    • Mar 17, 2025 Mistral Small 3.1 Model

      Mistral Small 3.1 is an open-weight model released by Mistral AI in March 2025 that adds image understanding and a 128K-token context window to the Small line, runs on a single consumer GPU, and was later superseded by newer Small releases.

    • May 7, 2025 Mistral Medium 3 Model

      Mistral Medium 3 is a proprietary model released by Mistral AI on 7 May 2025, marketed as a mid-sized system that nears larger competitors at a much lower price and can be self-hosted on four GPUs.

    • May 21, 2025 Devstral Model

      Devstral is Mistral AI's family of open-weight models for agentic coding, first released in May 2025 with All Hands AI; the first version scored 46.8% on SWE-Bench Verified and could run on a single consumer GPU.

    • Jun 10, 2025 Magistral Model

      Magistral is Mistral AI's first family of reasoning models, launched in June 2025 with an open-weight Small model and an enterprise Medium model. It supports multilingual reasoning and was later updated and retired.

    • Jul 15, 2025 Voxtral Model

      Voxtral is Mistral AI's family of speech-understanding models, released on 15 July 2025 in 24B and 3B sizes under Apache 2.0; it transcribes long audio, answers questions about it, and turns spoken requests into function calls.

    • Dec 2, 2025 Mistral Large 3 Model

      Mistral AI's flagship model of the Mistral 3 family, released in December 2025: a sparse mixture-of-experts model with 675B total parameters, open weights under Apache 2.0, and image understanding.

    • Dec 2, 2025 Ministral 3 Model

      Three small dense models from Mistral AI — 3B, 8B and 14B — released in December 2025 under Apache 2.0, each in base, instruct and reasoning variants with image understanding.

    • Dec 9, 2025 Mistral Vibe Agent

      Mistral Vibe is Mistral AI's open-source command-line coding agent, announced in December 2025 with Devstral 2; it later grew into a broader agent product with cloud sandbox sessions, a VS Code extension and monthly plans.

    • Dec 9, 2025 Devstral 2 Model

      Devstral 2 is Mistral AI's 123B-parameter agentic coding model, released in December 2025 alongside the Mistral Vibe CLI and scoring 72.2% on SWE-bench Verified. It was deprecated in May 2026 and retired that July, replaced by Mistral Medium 3.5.

  4. 2026
    • Mar 16, 2026 Mistral Small 4 Model

      Mistral Small 4 is an open-weight mixture-of-experts model released in March 2026 that folds instruction-following, step-by-step reasoning and agentic coding into one model, with a switch that controls how much reasoning it does.

    • Mar 23, 2026 Voxtral TTS Model

      Voxtral TTS is Mistral AI's first text-to-speech model, released in March 2026: about 4B parameters, nine languages, cloning from a three-second clip, open weights for non-commercial use and an API priced per character.

    • Apr 28, 2026 Mistral Medium 3.5 Model

      A 128B-parameter open-weights multimodal model from Mistral AI, listed in April 2026 for agentic and coding work, briefly the default in Le Chat before being superseded by Mistral Large 4.

    • Jul 8, 2026 Robostral Navigate Model

      Robostral Navigate is Mistral AI's first embodied navigation model: an 8-billion-parameter system that steers wheeled, legged or flying robots from RGB images and a plain-language instruction, using a single ordinary camera and no depth sensor.

    • Oct 6, 2026 Mistral Large 4 Model

      Mistral Large 4 is Mistral AI's flagship open-weight model, with about 1 trillion total parameters, a 1M-token context window and native multimodality. It was previewed on 6 October 2026, and an improved version's weights followed on 29 October 2026.

People3

Arthur Mensch2023–Guillaume Lample2023–Timothée Lacroix2023–

Notes and sources

  1. About Mistral AIhttps://mistral.ai/about
  2. Mistral AIhttps://en.wikipedia.org/wiki/Mistral_AI
  3. Mistral AI raises 1.7B€ to accelerate technological progress with AIhttps://mistral.ai/news/mistral-ai-raises-1-7-b-to-accelerate-technological-progress-with-ai
  4. Mistral raises €3B to make sovereign, open-weight AI the technology frontierhttps://mistral.ai/news/mistral-makes-sovereign-open-weight-ai-to-frontier/
  5. Microsoft and Mistral AI announce new partnership to accelerate AI innovation and introduce Mistral Large first on Azurehttps://azure.microsoft.com/en-us/blog/microsoft-and-mistral-ai-announce-new-partnership-to-accelerate-ai-innovation-and-introduce-mistral-large-first-on-azure/
  6. Mistral Computehttps://mistral.ai/news/mistral-compute
  7. Models Overview (including deprecated and retired models)https://docs.mistral.ai/getting-started/models/
  8. Emmi joins Mistral to accelerate the AI-native industryhttps://mistral.ai/news/accelerate-ai-native-industry/
  9. Vibe gets to workhttps://mistral.ai/news/vibe-agent/

Cite this page: Mistral AI. TellWorld, https://www.tellworld.net/companies/mistral-ai. Updated 2026-11-08