ChatGPT Atlas (agent mode)

OpenAI · agentic-browsing

name
ChatGPT Atlas (agent mode)
operator
OpenAI
purpose
agentic-browsing
ua_substring
robots_token
(none — agentic browser; no published robots.txt token)
respects_robots
no
verify
no stable user-agent and (per OpenAI enterprise docs) no IP allowlist; an agentic browser is identifiable only by IP/signature/behavior, not by a UA token. Treat as user-driven browser traffic.
notes
OpenAI's ChatGPT Atlas browser (launched 2025-10-21) embeds ChatGPT into web navigation; its 'agent mode' takes actions on the user's behalf inside the browser. As a local Chromium-based browser it presents like ordinary browser traffic with no stable AI user-agent token — included here per the agentic-browser taxonomy, verifiable by IP/signature only.
canonical_name
ChatGPT Atlas
user_agent_token
— no-stable-ua
ua_full
— no-stable-ua ↗ https://openai.com/index/introducing-chatgpt-atlas/
bot_type
agentic-browser
bot_type_extension
opt_out_mechanism
— not-applicable
published_ip_range_url
— verify-against-primary-at-build ↗ https://help.openai.com/en/articles/12603091-chatgpt-atlas-for-enterprise
asn
— verify-against-primary-at-build ↗ https://help.openai.com/en/articles/12603091-chatgpt-atlas-for-enterprise
reverse_dns_suffix
— not-applicable
supports_web_bot_auth
— verify-against-primary-at-build ↗ https://openai.com/index/introducing-chatgpt-atlas/
signature_agent_domain
— verify-against-primary-at-build ↗ https://openai.com/index/introducing-chatgpt-atlas/
jwks_url
— verify-against-primary-at-build ↗ https://openai.com/index/introducing-chatgpt-atlas/
verification_methods
IP-signature
crawl_traffic_share
— not-applicable
targeted_content_type
HTML, text (interactive browsing)
documentation_url
https://openai.com/index/introducing-chatgpt-atlas/
first_seen_date
2025-10-21 source
last_verified_date
2026-06-15
block_vs_allow_recommendation
conditional — acts inside a real user's browser session; it is not a bulk crawler and cannot be reliably blocked by robots.txt or UA. Manage via session-level / bot-management controls if agent actions are a concern.
citation_referral_value
medium (acts on a user's behalf in-browser; can surface and act on your page for that user)
cloudflare_verified_category
— verify-against-primary-at-build ↗ https://radar.cloudflare.com/bots/directory
status
active
triples
["ChatGPT Atlas","operated_by","OpenAI"] ["ChatGPT Atlas","has_bot_type","agentic-browser"] ["ChatGPT Atlas","verified_via","IP-signature"]
attribute_sources
{"claims":["operator","first_seen_date","documentation_url","bot_type"],"source":"https://openai.com/index/introducing-chatgpt-atlas/","last_verified":"2026-06-15"} {"claims":["published_ip_range_url"],"source":"https://help.openai.com/en/articles/12603091-chatgpt-atlas-for-enterprise","last_verified":"2026-06-15"}

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