ChatGPT extension
Fast to install, but context is limited to selections and you still juggle tabs manually.
Built-in ChatGPT · Agent Mode · Free on Mac & Windows
ChatGPT Browser
Tabbit puts ChatGPT inside a real AI browser — not just a sidebar. 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.
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
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
ChatGPT Browser: 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 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
ChatGPT Browser — common questions
What is a ChatGPT browser?
A ChatGPT browser is a web browser with ChatGPT built in, so you can ask questions, summarize pages, and interact with web content without switching tabs or copy-pasting links. Tabbit takes this further by adding Agent Mode, multi-model switching, and vertical workspaces.
Is ChatGPT Atlas the only ChatGPT browser?
No. ChatGPT Atlas is OpenAI's official AI browser, but alternatives like Tabbit also offer built-in GPT access alongside Claude, Gemini, and regional models, plus deeper automation through Agent Mode.
Can I use a ChatGPT browser on Windows?
Yes. Tabbit ships a full ChatGPT browser experience on both macOS and Windows with the same Agent Mode, model lineup, and vertical tabs. Atlas availability on Windows varies by region.
Is a ChatGPT browser free?
ChatGPT Atlas has a free tier with advanced models behind ChatGPT Plus. Tabbit's public beta is free on macOS and Windows and includes GPT access, Agent Mode, and tab tools — no invite code.
Do I need ChatGPT Plus to use Tabbit?
No separate Plus subscription is required to start with Tabbit. The international edition includes access to top models during the free public beta; check tabbitbrowser.com for the current model lineup.
How is Tabbit different from a ChatGPT Chrome extension?
Extensions overlay chat on a normal browser. Tabbit rebuilds browsing around AI with vertical tabs, @ context, Skills shortcuts, and Agent lanes that run multi-step work automatically.
What models are available in Tabbit besides ChatGPT?
International users get Gemini, GPT, Claude and more. Mainland China users get DeepSeek, GLM, Kimi, Qwen, Doubao, MiniMax and LongCat — all switchable inside the same browser.
Can Tabbit's Agent Mode use ChatGPT to perform tasks?
Yes. You can describe a multi-step task in natural language and Tabbit's Agent Mode will open its own tab group, navigate sites, fill forms, and return structured results while you keep browsing.
Download the ChatGPT browser that does more
Free on macOS and Windows. GPT, Agent Mode, and vertical tabs — no invite code.