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What is MistralAI-Training, and how do I block it?

MistralAI-Training is Mistral AI's AI training crawler. Two lines in robots.txt block it, and Mistral AI says it follows them. Checked October 29, 2026.

What is MistralAI-Training?

MistralAI-Training is Mistral AI's AI training crawler. Training crawlers collect pages that may be used to train or improve AI models.

OperatorMistral AI
Purpose (operator wording)training
robots.txt tokenMistralAI-Training
User agent stringMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; MistralAI-Training/1.0; +https://docs.mistral.ai/robots)
Respects robots.txtYes (operator: webmasters can disallow it in robots.txt)
IP rangesNot stated by the operator
Last verified

What else should I know about MistralAI-Training?

What is the MistralAI-Training user agent string?

This is the user agent string Mistral AI documents for MistralAI-Training, as of October 29, 2026. Version numbers and details can change, so match on the token in robots.txt, not on the whole string.

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

How do I block MistralAI-Training in robots.txt?

Add this group to the robots.txt file at the root of your site. It asks MistralAI-Training to stay out of every page.

Block MistralAI-Training
User-agent: MistralAI-Training
Disallow: /

To allow it explicitly, for example while a broader rule blocks other bots:

Allow MistralAI-Training
User-agent: MistralAI-Training
Allow: /

How do I opt out of Mistral AI training but stay in its search?

Each Mistral AI user agent has its own token, so you can set them one by one. This file blocks MistralAI-Training and allows MistralAI-User, MistralAI-Index. Every line comes from the rows in this dataset. Whether allowing a bot keeps you in a product is Mistral AI's call, so check each crawler's page.

Mistral AI: block training, allow search and user fetch
User-agent: MistralAI-Training
Disallow: /

User-agent: MistralAI-User
Allow: /

User-agent: MistralAI-Index
Allow: /

Does blocking MistralAI-Training affect AI answers?

Mistral: not used for search indexing or to answer live user queries in Vibe.

Each other Mistral AI user agent has its own robots.txt token, so a rule for MistralAI-Training does not cover them. See the related crawlers below.

Does MistralAI-Training follow robots.txt?

Yes. Operator: webmasters can disallow it in robots.txt. Mistral: 'Webmasters can disallow this user agent in their robots.txt file.'

Robots.txt is a request, not a lock (RFC 9309).

What IP addresses does MistralAI-Training use?

Not stated by the operator. Without a published list you cannot verify MistralAI-Training by address, so a rule at your server cannot rely on one.

Which other Mistral AI crawlers are there?

What should I read next?

Next: give AI tools something to quote

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