MistralAI-Index
MistralAI-Index is the automatic indexing crawler operated by Mistral AI, the French artificial intelligence company. It visits public websites to build the index that feeds the search feature inside Vibe, Mistral's platform, so it can answer user queries. Mistral explicitly states in its official documentation that content collected by this crawler is not used to train any of its AI models. If your website is indexed, it can surface as a source in Vibe's search results when someone looks for something related to your business.
- User-agent
MistralAI-IndexMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; MistralAI-Index/1.0; +https://docs.mistral.ai/robots)- Does it respect robots.txt?
- Yes
- Official documentation
- https://docs.mistral.ai/robots
How to allow it in your robots.txt
User-agent: MistralAI-Index
Allow: /How to block it (not recommended)
User-agent: MistralAI-Index
Disallow: /Frequently asked questions
Should I block MistralAI-Index?
It depends on whether you want your business to appear in Vibe, Mistral's platform. If your potential customers use it, allowing the bot is the sensible choice. If you prefer to opt out, simply add the MistralAI-Index token to your robots.txt file — the bot respects it.
Does MistralAI-Index affect my visibility in Mistral's AI models?
No — Mistral explicitly states that data collected by this crawler is not used for model training. However, being indexed can still help your business appear as a source in Vibe's search results when users search for topics related to what you offer, which is a separate but worthwhile visibility opportunity.
How can I tell if MistralAI-Index is visiting my site?
Check your server logs or your hosting provider's dashboard. Look for the string MistralAI-Index in the user-agent field; every visit from this bot is recorded with that identifier.