# Agentic browsers

> AI browsers that act on a user's behalf. They mimic a real browser, so they carry no stable bot user-agent — verify by IP or signature.

_4 of 31 · [all The AI Crawler Registry](/crawlers)_

- [ChatGPT Atlas (agent mode)](/crawlers/chatgpt-atlas) — OpenAI · agentic-browsing
- [Perplexity Comet (assistant/agent)](/crawlers/perplexity-comet) — Perplexity · agentic-browsing
- [OpenAI Operator (Computer-Using Agent)](/crawlers/openai-operator) — OpenAI · agentic-browsing
- [Project Mariner](/crawlers/project-mariner) — Google · agentic-browsing