Kuldeep Paul

Model training · Ai2

AI2Bot

The Allen Institute for AI's crawler for open language-model research.

Compiled by · Updated Oct 29, 2026

8.3%of top sites fully block AI2Bot
475sites blocking, of 5,701 with robots.txt
79of the top 1,000 block it
Operator
Ai2
Purpose
Model training
Used for
Open language models (OLMo)
Obeys robots.txt
Yes
robots.txt token
AI2Bot
User-agent string
Mozilla/5.0 (compatible) AI2Bot (+https://www.allenai.org/crawler)
IP list
Not published
Official docs
allenai.org

Block AI2Bot in robots.txt

User-agent: AI2Bot
Disallow: /

Well-known sites that block AI2Bot

amazon.com #30, amazonvideo.com #85, msn.com #92, snapchat.com #157, cnn.com #195, sciencedirect.com #224, canva.com #276, launchpad.net #281, amazon.co.uk #326, ea.com #345, amazon.de #387, amazon.co.jp #490, scribd.com #498, behance.net #525, uol.com.br #535, slideshare.net #550, usatoday.com #617, dailymail.com #619, telegraph.co.uk #629, amazon.fr #632, amazon.ca #633, nintendo.com #635, amazon.in #676, primevideo.com #678

Ranks from the Tranco list. Full per-site data in the robots.txt study.

Questions

What is AI2Bot?

AI2Bot is a model training bot operated by Ai2, used for Open language models (OLMo). The Allen Institute for AI's crawler for open language-model research.

How do I block AI2Bot?

Add "User-agent: AI2Bot" followed by "Disallow: /" to the robots.txt file at the root of each host you want to protect.

Does AI2Bot respect robots.txt?

Yes. Ai2 documents that AI2Bot honours robots.txt directives.

How many websites block AI2Bot?

In a Oct 29, 2026 analysis of the top 10,000 websites by Kuldeep Paul, 8.3% of sites with a robots.txt file fully disallowed AI2Bot.

Analysis using this data

  1. Who blocks AI crawlers? What 10,000 robots.txt files revealPublishers block training, not answers; half of all blocklists leak; Cloudflare writes the most common AI policy.
  2. The opt-out asymmetry: you can block the small AI engines, not the big oneThe AI surfaces with the most users are the ones publishers can't refuse and can't measure.

← All AI crawlers

How to cite this data

This dataset is free to use, including commercially, under Creative Commons Attribution 4.0. The one rule is attribution:

  1. Credit the source as “Kuldeep Paul, kuldeep.cc” wherever you use a figure, chart or table from it.
  2. Link to this page (https://kuldeep.cc/data/ai-search/crawlers/ai2bot), not to the download file, so readers can check the source of every number.
  3. Include the date. These figures change; say “as of Oct 29, 2026” or link to the version you used.
  4. Mark changes. If you filter, recalculate or chart the data yourself, say so (“analysis based on data from…”).
  5. Cite the original source for single figures when you quote one reported number; it is linked in every row.

In running text: according to Kuldeep Paul's AI2Bot — AI crawler directory (kuldeep.cc). More in the methodology.

APA

Paul, K. (2026). AI2Bot — AI crawler directory [Data set]. kuldeep.cc. https://kuldeep.cc/data/ai-search/crawlers/ai2bot

MLA

Paul, Kuldeep. "AI2Bot — AI crawler directory." kuldeep.cc, 29 October 2026, https://kuldeep.cc/data/ai-search/crawlers/ai2bot.

Chicago

Paul, Kuldeep. 2026. "AI2Bot — AI crawler directory." Dataset. kuldeep.cc. Updated Oct 29, 2026. https://kuldeep.cc/data/ai-search/crawlers/ai2bot.

BibTeX

@misc{paul2026ai2bot, author = {Paul, Kuldeep}, title = {AI2Bot — AI crawler directory}, year = {2026}, howpublished = {\url{https://kuldeep.cc/data/ai-search/crawlers/ai2bot}}, note = {Dataset, CC BY 4.0, updated 2026-10-29} }

HTML link

<a href="https://kuldeep.cc/data/ai-search/crawlers/ai2bot">AI2Bot — AI crawler directory</a> (data: Kuldeep Paul, kuldeep.cc)