ChatGPT extension
Fast to install, but context is limited to selections and you still juggle tabs manually.
Built-in GPT · Agent Mode · Free on Mac & Windows
Browser with ChatGPT Built In
Tabbit is a browser with ChatGPT built in — not a side-panel add-on. Ask about any page, switch to Claude or Gemini, and let Agent Mode finish multi-step work in its own tab lane while you keep browsing.
Pick your path
Three ways to get ChatGPT built into your browser
ChatGPT Atlas
Native ChatGPT sidebar and smart search — macOS-first, OpenAI models only.
Tabbit Browser
GPT built in, plus Agent execution, model switching, and vertical workspaces on Mac & Windows.
How it works
Built-in ChatGPT workflows that actually finish
- 1
Ask from the Omnibox
Type a URL, a question, or a task. GPT reads the page you are on — no copy-paste relay between tabs.
- 2
@ what you see
Reference open tabs, screenshots, PDFs, or saved collections as context. ChatGPT answers with your real workflow in view.
- 3
Hand off to Agent Mode
When chat is not enough, Agent runs forms, research, and data pulls in an isolated tab group — parallel to your work.
GPT and beyond
ChatGPT plus the models you already trust
GPT-5.x
Draft, code, and analyze with OpenAI models inside Tabbit.
Claude Sonnet / Opus
Long-context reasoning alongside GPT — one click away.
Gemini 3.1 Pro
Multimodal search and synthesis without leaving the browser.
DeepSeek & Qwen
Strong regional models when GPT is not the best fit.
Skills shortcuts
Save prompts and automations — type / to rerun ChatGPT workflows.
Agent lanes
Turn GPT plans into executed steps across real websites.
Side by side
Browser with ChatGPT Built In: extension vs Atlas vs Tabbit
| Extension | ChatGPT Atlas | Tabbit | |
|---|---|---|---|
| ChatGPT / GPT access | Via your ChatGPT account or API | Built-in ChatGPT sidebar | GPT plus Claude, Gemini & regional models |
| Runs as | Overlay on any browser | Standalone Chromium browser | AI-native browser with Agent lanes |
| Page context | Selected text or tab snippet | Ask about the current page | @-reference tabs, screenshots & files |
| Multi-step tasks | Manual copy-paste loops | Limited agent runs | Agent Mode in isolated tab groups |
| Tab organization | Depends on host browser | Standard tabs + ChatGPT panel | Vertical tabs & smart workspaces |
| Desktop platforms | Any browser, any OS | macOS first; Windows rolling out | macOS & Windows — same stack |
| Price to start | Free tier + Plus/API costs | Free with Plus upsell | $0 public beta — models included |
Real tasks
What people do with built-in ChatGPT in Tabbit
Research without tab chaos
GPT summarizes papers and articles; Agent collects sources into a grouped workspace you can revisit later.
Write with page context
@ the brief, competitor page, or analytics tab — ChatGPT drafts in your tone with facts from what is open.
Automate the boring clicks
File expenses, fill forms, or scrape structured data. Agent handles the loops; you approve the outcome.
FAQ
Browser with ChatGPT Built In — common questions
Which browser has ChatGPT built in?
ChatGPT Atlas is the official OpenAI browser with ChatGPT built in. Tabbit is another option: it also has GPT built in, plus Claude, Gemini, Agent Mode, and vertical tab workspaces on macOS and Windows — all free during the public beta.
What is the new browser by ChatGPT?
The new browser by ChatGPT is ChatGPT Atlas, a Chromium-based macOS browser with a ChatGPT sidebar. Tabbit offers a similar built-in GPT experience with more models, Agent execution, and Windows support.
Is there a free browser with ChatGPT built in?
Yes. Tabbit is a free browser with ChatGPT built in during its public beta on macOS and Windows. ChatGPT Atlas also has a free tier, though some advanced features require a ChatGPT Plus subscription.
Can I get ChatGPT built into my browser on Windows?
Yes. Tabbit ships the full built-in GPT experience on both macOS and Windows. ChatGPT Atlas is currently macOS-first, with Windows still in development.
How is Tabbit different from ChatGPT Atlas?
Tabbit gives you GPT plus Claude, Gemini, DeepSeek and Qwen in one browser, with Agent Mode that runs multi-step tasks in isolated tab groups. Atlas is focused on ChatGPT and smart search inside a Chromium shell.
Do I need a ChatGPT Plus subscription for Tabbit?
No separate ChatGPT Plus subscription is required to start with Tabbit. The international edition includes access to top models during the free public beta; see tabbitbrowser.com for the current lineup.
Can Tabbit use the page I am viewing as context?
Yes. Type @ in the Omnibox to reference the current tab, other tabs, screenshots, PDFs, or saved collections. ChatGPT answers using your real open pages as context.
What can Agent Mode do with ChatGPT in Tabbit?
Agent Mode turns a ChatGPT plan into executed steps across real websites — fill forms, compare products, compile research, or pull data — while you keep browsing in your own tabs.
Download the browser with ChatGPT built in
Free on macOS and Windows. GPT, Agent Mode, and vertical tabs — no invite code.