MistralAI-User

Operator

Mistral AI

Type

AI Assistant

Official page

docs.mistral.ai

robots.txt token

MistralAI-User

Published IP ranges

mistral.ai/mistralai-user-ips.json

In Vireo

Excluded, reported under AI crawlers

What it does

Fetches pages when a user asks Mistral's Vibe a question. Mistral says it isn't an automatic crawler and isn't used for AI training.

MistralAI-User is for user actions in Vibe. When users ask Vibe a question, it may visit a web page to help answer and include a link to the source in its response.

Mistral AI

User agent

Requests from MistralAI-User carry a user agent like this:

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; MistralAI-User/1.0; +https://docs.mistral.ai/robots)

Device Detector identifies it with this pattern (a case-insensitive regular expression):

MistralAI-User

Anyone can put any name in a user agent. Where the operator publishes IP ranges, checking the request's address against them is the way to confirm a visit is genuine.

How to block or allow MistralAI-User

Add a group for its token to the robots.txt file at the root of your site. To keep it out of the whole site:

User-agent: MistralAI-User
Disallow: /

To let it crawl everything, use an empty Disallow: or Allow: / instead. WordPress serves a virtual robots.txt that many SEO plugins let you edit. A real robots.txt file uploaded to the site root takes its place.

MistralAI-User governs which sites these user requests can be made to.

Mistral AI

robots.txt is a request, so it only works on crawlers that honour it. A bot that ignores it has to be blocked at the server or firewall, by user agent or IP address.

Worth knowing

Mistral also runs MistralAI-Index (search indexing) and MistralAI-Training (model training). Each has its own token.

It is not used for crawling the web in any automatic fashion, nor to crawl content for generative AI training.

Mistral AI

How Vireo counts MistralAI-User

Vireo keeps requests from MistralAI-User out of your pageviews and visitors and counts them on its bot report under AI crawlers, so you can see how much it left out rather than wonder why your server logs show more traffic.

Because it's an AI crawler, its requests also count toward the pages AI crawlers took, which Vireo shows next to the readers AI assistants sent back. See how the AI assistants card works.

Checked by running Vireo Analytics' own bot filter over MistralAI-User's user agents.

Sources

• Mistral AI: crawler documentation (checked October 2026)
• Matomo Device Detector, bots.yml (LGPL-3.0)
• ai.robots.txt (MIT)