The official path
Follow OpenAI into ChatGPT
Agentic browsing moved into the ChatGPT app and a Chrome extension. If ChatGPT is the assistant you want, this is the shortest route, and the one OpenAI supports.
Atlas shut down on 9 August 2026
A
ChatGPT
Atlas
alternative
that
adds
the
agent
to
your
current
browser
OpenAI retired Atlas and moved its agentic browsing into ChatGPT and a Chrome extension. Browsentic puts an agent in the browser you already use, so there is no second browser to adopt or lose, and the source is Apache 2.0.
What happened
Atlas lasted ten months
From launch to shutdown.
-
October 2025
Atlas ships
OpenAI releases Atlas, a Chromium browser with ChatGPT built into it and an agent mode that can act on the page for you. It is macOS only at launch.
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July 2026
OpenAI announces the end
OpenAI says it is folding what it learned from Atlas back into ChatGPT itself, rather than maintaining a separate browser.
-
9 August 2026
Atlas stops working
Users are told to export their bookmarks and anything else they want to keep. Agentic browsing continues inside the ChatGPT desktop app and a Chrome extension instead.
Where to go
Three options after Atlas
Two of them are not Browsentic, and the first is the one OpenAI supports.
Another migration
Adopt another AI browser
Comet, Dia, Opera Neon and BrowserOS each want to be your browser. Each means importing a profile, reinstalling extensions and signing in again, with a company that could make the same decision OpenAI made.
What Browsentic does
Keep the browser you have
Add the agent to the browser you already use. Your profile, extensions, logins and two-factor state stay where they are. If the project stopped, the source is Apache 2.0 and Browsentic Bridge is on your disk.
Why Browsentic
What you keep by staying in your own browser
Nothing to import
No profile migration, no reinstalling extensions, no signing back in. The agent works in the browser where all of that is already set up.
The agent is yours
It runs on the CLI you already have: Claude Code, Codex, Antigravity, Mistral Vibe, Grok Build, Cursor CLI, Qwen Code or OpenCode, switched in one click. Your browser is not tied to one company’s model.
It runs on your machine
Browsentic Bridge, on loopback, starts your agent as you. There is no account, no API key and no hosted service that can be turned off.
You have the source
Apache 2.0 licensed and source available. If development stopped, you would still have the code and could build it yourself.
npx browsentic@latest setup
Setup asks which browser you use and opens the extension’s store page there. Press Add, and the extension connects to Browsentic Bridge by itself; if it asks for a code, enter the one setup shows.
Available in the Chrome Web Store
Available on Edge Add-ons
Firefox add-on, signed by MozillaQuestions
What people ask after the shutdown
Is Browsentic a drop-in replacement for ChatGPT Atlas?
No. Atlas was a browser with an assistant and search built in. Browsentic replaces only the agent: it adds a side panel to the browser you already use, Chromium or Firefox, and leaves search, bookmarks and everything else as they are. If what you miss is agent mode acting on a page for you, Browsentic covers that.
What happened to ChatGPT Atlas?
OpenAI retired it. Atlas shipped in October 2025, and in July 2026 OpenAI announced it was folding browser-based agentic work back into ChatGPT. Atlas stopped working on 9 August 2026, and users were advised to export bookmarks first. The capability moved into the ChatGPT desktop app and a Chrome extension.
Do I need to change browsers to use Browsentic?
No. It works in Chrome, Edge, Brave, Arc and other Chromium browsers, and in Firefox through a signed add-on, with the profile and logins you already have.
Do I need an OpenAI or Anthropic API key?
No. Browsentic starts the agent CLI you already signed in to: Claude Code, Codex, Antigravity, Mistral Vibe, Grok Build, Cursor CLI, Qwen Code or OpenCode. There is no API key to paste and no per-token bill; the work runs on the subscription you already have.
Checked against OpenAI’s own help centre, September 2026.
Give your browser a superpower.
Free and open source under Apache 2.0, with no API key, subscription or account. One line installs Browsentic Bridge and opens the extension’s store page. Nothing connects until you pair the two.