# OAI-SearchBot

> Builds the index ChatGPT search answers from. Content it collects is used for retrieval and citation, not for model training.

| field | value |
|---|---|
| operator | OpenAI |
| category | AI search crawlers |
| robots.txt token | `OAI-SearchBot` |
| user-agent contains | `OAI-SearchBot` |
| robots.txt | obeys robots.txt (documented) |
| verify by | published IP ranges |
| published IP ranges | https://openai.com/searchbot.json |
| prefixes mirrored | 35 IPv4 / 0 IPv6 |
| operator docs | https://platform.openai.com/docs/bots |
| last reviewed | 2026-09-01 |

## What blocking it costs you

High. Blocking this removes you from ChatGPT search results and from the source links ChatGPT shows. This is the single most expensive block on this list for anyone who wants to be cited by an assistant.

## Full user-agent string

```
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-SearchBot/1.0; +https://openai.com/searchbot
```

## Block it

```
User-agent: OAI-SearchBot
Disallow: /
```

## Allow it

```
User-agent: OAI-SearchBot
Allow: /
```

JSON: https://www.pathwren.workers.dev/crawler/oai-searchbot.json · index: https://www.pathwren.workers.dev/llms.txt