Pick ChatGPT Atlas if
people who installed Atlas and still need to export bookmarks, or who want the historical product note.
Read the ChatGPT Atlas pageChatGPT Atlas vs Nimbus
Our take
Pick ChatGPT Atlas if people who installed Atlas and still need to export bookmarks, or who want the historical product note. Pick Nimbus if people who want Claude Code’s chat-plus-log UX on the web, will claim a founding spot at $0, and will paste their own Gemini / OpenAI / Anthropic key — not teams that need a billed Nimbus seat (none is printed) or a Chrome extension. Skip ChatGPT Atlas if anyone starting fresh
Best for
ChatGPT Atlas People who installed Atlas and still need to export bookmarks, or who want the historical
Nimbus A browser whose primary chrome is the agent log
Free plan
ChatGPT Atlas No free plan
Nimbus $0 · forever, while the homepage still prints the cap. Soft-note: founding form + “Claim my spot” on the same page
Lowest paid
ChatGPT Atlas Plus $20/mo
Nimbus Not published by the vendor
Next step up
ChatGPT Atlas Pro 100 / 200 / 500 $100/mo
Nimbus
Coding agent
ChatGPT Atlas Agent + Tab inside the editor
Nimbus Claude Code
Runs where
ChatGPT Atlas
Nimbus Hosted
Watch out
ChatGPT Atlas Scheduled stop: 2026-08-09
Nimbus Founding free is capped at 500
Last checked
ChatGPT Atlas 2026-10-22 · help.openai.com
Nimbus 2026-10-23 · producthunt.com/products/nimbus-10
Which one, then?
Pick Nimbus if
people who want Claude Code’s chat-plus-log UX on the web, will claim a founding spot at $0, and will paste their own Gemini / OpenAI / Anthropic key — not teams that need a billed Nimbus seat (none is printed) or a Chrome extension.
Read the Nimbus page