Mistral Large 4
Mistral AI's very large new model is free to download under restricted terms, built for powerful servers rather than personal computers.
Key facts
- Released
- Oct 6, 2026
- What it does
- Text and chat: Writes, answers questions and holds a conversation.Code: Writes, explains and fixes code.Thinks first: Can reason step by step before it answers: slower, but better at maths, code and tricky questions.Sees images: Understands pictures, screenshots and charts you share with it.Reads files: Reads documents such as PDFs.
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- How
- Free to download, with some licence limits
- Size
- Parameters: The numbers a model learns during training: a rough measure of its size. Bigger usually means more capable, but slower and pricier to run. 7B means 7 billion.
- Announced as
- “Le chonk Introducing Mistral Large 4”
From trckr's archive of releases before it started watching. Date and details from Epoch AI's database of AI models (CC BY 4.0).
Price and limits
What developers pay to use it through the API: How developers plug a model into their own apps and pay per use. A model that's "in the API" can be used by programmers, even if it isn't in a chat app yet., per million Tokens: The small chunks of text a model reads and writes, about three-quarters of a word each. Prices and limits are counted in tokens. sent (input) or written back (output), and how much it can take in at once.
- Input
- $0.70
- per million tokensCached: $0.07
- Output
- $2.10
- per million tokens
- Context window: How much a model can keep in mind at once: your question, any files you share and its own replies. Measured in tokens; 1,000 tokens is about 750 words.
- 1.05M tokens
- about 790,000 words
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- Longest answer
- 262K tokens (about 200,000 words)
From the lab's own listing on models.dev and OpenRouter, checked .
How it scores
From independent testers, never the lab's own claims.
- Combined test score#44 of 235
- GPT-6 Astra169
- 2GPT-6.1 Sol169
- 43Muse Spark 1.1155
- 44Mistral Large 4155
- 45Qwen3.7-Max155
Source: Epoch AI · Epoch Capabilities Index
- Building apps, by people's votes#40 of 85
- Claude Opus 5.51,818
- 2Claude Sonnet 5.51,773
- 39Step 5 Preview1,572
- 40Mistral Large 41,563
- 41Claude Opus 4.71,557
Source: LMArena · LMArena WebDev
Compare Mistral Large 4 with
It came out 98 days after Leanstral 1.5, the lab's previous model.
The details
Mistral Large 4 is Mistral AI's text model with 1,100 billion parameters: Data-centre scale: it runs on many chips (GPUs) at once. Parameters are the numbers a model learns: a rough measure of its size., covering chat, coding, and question answering. It is released as Open weights: The model's files are public, so anyone can download it, run it on their own computer and build on it, usually for free. trckr labels these "Open". with restricted use.
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