The ChatGPT Atlas alternative that lives in Chrome.
OpenAI retired the ChatGPT Atlas browser on August 9, 2026. If you liked having an agent that could act on web pages, you do not need another new browser to get it back — Hark adds one to the Chrome you already use.
Atlas launched on October 21, 2025 and was discontinued on August 9, 2026; OpenAI moved its browsing-agent features into the ChatGPT desktop app and a Chrome extension. Hark is the closest replacement for the “assistant beside every tab” experience: a Chrome side-panel agent that reads the page, acts on it and asks before final steps.
At a glance
Hark and ChatGPT Atlas, side by side.
| Hark | ChatGPT Atlas | |
|---|---|---|
| What it is | Chrome extension — an AI agent in the side panel | AI browser with ChatGPT in every tab — discontinued on August 9, 2026 |
| Where it runs | Google Chrome on Windows, macOS, Linux and ChromeOS | Was macOS only at launch |
| Acts on websites | Yes — clicks, types and fills forms in your current tab | Agent mode existed; now moved into the ChatGPT desktop app |
| Approval before final steps | Always, before send, submit, book, pay or delete | Asked for confirmation on sensitive actions |
| Email help | Summaries, reply drafts and deadlines in Gmail & Outlook on the web | Through the agent |
| Tracker for orders & deadlines | Built-in Tracker for orders, bookings, bills and deadlines | No |
| Account needed | No account — install and use | OpenAI account required |
| Free plan | 1 AI request per day, all modes | No longer available |
| Paid plans | $5.99/week (2-day trial), $14.99/month or $39.99/year | No longer available |
| AI models | OpenAI models, in Fast and Smart modes | OpenAI’s GPT models |
Choose Hark if…
- You want the assistant next to every tab again, without betting on another new browser
- You use Windows, Linux or ChromeOS — Atlas never left the Mac
- You want approvals before final steps and no account to create
- You want email help and a tracker built in
Other Atlas alternatives worth a look
- You want to stay with OpenAI: use the ChatGPT desktop app or its Chrome extension
- You want a full AI browser: look at Perplexity Comet, Opera Neon or Dia
- You are in Google’s ecosystem: try Gemini in Chrome
What happened to ChatGPT Atlas?
Atlas was OpenAI’s Chromium-based browser with ChatGPT built into every tab and an agent mode that could click through sites. It launched on macOS on October 21, 2025. In July 2026 OpenAI announced it would retire the browser, and it stopped working on August 9, 2026. Bookmarks and browsing data did not move anywhere automatically; OpenAI pointed users to the ChatGPT desktop app and to the ChatGPT extension for Chrome.
The lesson: keep your browser, add the agent
The Atlas story is a good argument for extensions. When an AI browser is discontinued, you lose your tabs, your setup and your habits. When an extension is discontinued, you remove it and your browser is untouched. Hark is deliberately the second kind: a side panel in Chrome, with your existing logins, bookmarks and other extensions exactly where they were. We compare the two approaches in AI browser vs AI extension.
How to move from Atlas to Hark
There is nothing to migrate. Open Chrome, add Hark from the Chrome Web Store, pin it to the toolbar and press Alt+Shift+H. Start with something you used Atlas for: “Summarize this page”, “Draft a reply”, or an Agent task such as “Find a table for 2 tonight at 8 pm on this site”.
FAQ
Atlas alternatives: common questions
Is ChatGPT Atlas still available?
No. According to OpenAI’s announcement, ChatGPT Atlas stopped working on August 9, 2026. Its agent features were moved into the ChatGPT desktop app and a ChatGPT Chrome extension.
What is the best ChatGPT Atlas alternative?
It depends on what you used Atlas for. For an assistant beside every tab in your existing Chrome, with an agent that acts on pages, Hark is a direct fit. To stay with OpenAI, use the ChatGPT desktop app. For a full AI browser, Perplexity Comet is free and available on Mac and Windows.
Does Hark work on Windows?
Yes. Hark works in Google Chrome on Windows, macOS, Linux and ChromeOS. Atlas was macOS only at launch.
Is Hark affiliated with OpenAI?
No. Hark is an independent product. ChatGPT and Atlas are trademarks of OpenAI.
Hand your next task to Hark.
Add it to Chrome, open the side panel and say what you need. It takes about ten seconds.
Free plan included · No account needed · Works in Chrome on Windows, Mac, Linux and ChromeOS