AI2Bot
Allen AI · reviewed 2026-11-05
About AI2Bot
Allen AI's research crawler collecting open corpora.
Non-profit AI research institute (AI2); AI2Bot collects open corpora for research.
Usually means: A model provider fetched this URL for future training data. It does not mean today's answers cite the page.
Identity
User agent
Crawlers are matched by token, not the full browser string. Providers may add version or product text around it.
robots.txt token
Use this token in a User-agent line to allow or block the crawler.
Block this token
User-agent: AI2Bot Disallow: /
A Disallow only stops crawlers that honor robots.txt. Classify the category before blocking; check the live file with the robots.txt checker.
Verify a hit
A matching user agent is not proof: any client can send the string. When the vendor publishes network data, compare the request against it before you trust the hit.
Match the user agent
Request UA contains AI2Bot.
Check reverse DNS
The vendor publishes no reverse-DNS suffix.
Check the IP range
The vendor publishes no IP ranges.
A verified hit proves the network path; it does not prove what the crawler will do with the page.
AI2Bot: common questions
What is AI2Bot?
AI2Bot is a crawler from Allen AI, filed under Training. Allen AI's research crawler collecting open corpora. Requests advertise it in the User-Agent header as AI2Bot.
Does AI2Bot train AI models?
Yes. It collects content for model training, which shapes future models rather than today's answers or citations.
How do I block AI2Bot in robots.txt?
Add a group with User-agent: AI2Bot and Disallow: / to robots.txt, then re-test the live file. robots.txt matches the token, not the full User-Agent string, and blocking this token does not block the vendor's other crawlers.
How do I verify an AI2Bot hit?
Only by user agent. Allen AI publishes neither reverse DNS nor IP ranges, so a match is not checked — that is not the same as forged, but it is not proof either.
Testing a block? Run the live file through the robots.txt tester or check the whole AI crawler access group.
See when AI2Bot hits your site
Page scripts never see AI crawlers because they do not run JavaScript. Install the server probe and each hit lands in the Crawlers block with its path and status.