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 Dia
Our take
Pick ChatGPT Atlas if people who installed Atlas and still need to export bookmarks, or who want the historical product note. Pick Dia if arc / The Browser Company users who want tab-aware chat and will pay for AI. Skip ChatGPT Atlas if anyone starting fresh — use ChatGPT + the Chrome extension, or Perplexity Comet. Skip Dia if people who want a $0 AI browser (Perplexity Comet) or who refuse a second Chromium.
Best for
ChatGPT Atlas People who installed Atlas and still need to export bookmarks, or who want the historical
Dia A browser with tab-aware answers
Free plan
ChatGPT Atlas No free plan
Dia $0 · no AI. Profiles, tab groups, split-view, blocker, sync
Lowest paid
ChatGPT Atlas Plus $20/mo
Dia Better Answers $10/mo
Next step up
ChatGPT Atlas Pro 100 / 200 / 500 $100/mo
Dia Usage top-ups $20
Coding agent
ChatGPT Atlas Agent + Tab inside the editor
Dia
Watch out
ChatGPT Atlas Scheduled stop: 2026-08-09
Dia Free has no AI
Last checked
ChatGPT Atlas 2026-10-22 · help.openai.com
Dia 2026-10-22 · diabrowser.com
Which one, then?
Pick Dia if
arc / The Browser Company users who want tab-aware chat and will pay for AI.
Read the Dia page