# GPTBot

> OpenAI's bulk crawler. Pages it fetches may be used to train future OpenAI foundation models. It is not the bot that puts you in ChatGPT's search results, and blocking it does not remove you from them.

| field | value |
|---|---|
| operator | OpenAI |
| category | AI training crawlers |
| robots.txt token | `GPTBot` |
| user-agent contains | `GPTBot` |
| robots.txt | obeys robots.txt (documented) |
| verify by | published IP ranges |
| published IP ranges | https://openai.com/gptbot.json |
| prefixes mirrored | 21 IPv4 / 0 IPv6 |
| operator docs | https://platform.openai.com/docs/bots |
| last reviewed | 2026-09-01 |

## What blocking it costs you

Your content is excluded from training data for future OpenAI models. No effect on ChatGPT search visibility, on citations, or on links a user pastes into ChatGPT.

## Full user-agent string

```
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; GPTBot/1.2; +https://openai.com/gptbot
```

## Block it

```
User-agent: GPTBot
Disallow: /
```

## Allow it

```
User-agent: GPTBot
Allow: /
```

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