# AI2Bot

> The Allen Institute's crawler, gathering pages for open research corpora such as Dolma that underpin fully open models like OLMo.

| field | value |
|---|---|
| operator | Allen Institute for AI |
| category | Corpus and dataset builders |
| robots.txt token | `AI2Bot` |
| user-agent contains | `AI2Bot` |
| robots.txt | obeys robots.txt (documented) |
| verify by | no published verification method |
| published IP ranges | none published |
| prefixes mirrored | 0 IPv4 / 0 IPv6 |
| operator docs | https://allenai.org/crawler |
| last reviewed | 2026-09-01 |

## What blocking it costs you

Excluded from open research datasets. Worth a deliberate decision: this is the category where 'blocking AI' also blocks the open, auditable end of it.

## Full user-agent string

```
Mozilla/5.0 (compatible) AI2Bot (+https://www.allenai.org/crawler)
```

## Block it

```
User-agent: AI2Bot
Disallow: /
```

## Allow it

```
User-agent: AI2Bot
Allow: /
```

JSON: https://www.pathwren.workers.dev/crawler/ai2bot.json · index: https://www.pathwren.workers.dev/llms.txt