OpenAI’s official browser
That product is ChatGPT Atlas—Chromium with ChatGPT in the sidebar. Announced on openai.com.
Decode your search
Open AI Browser
Typed with spaces? You are usually looking for OpenAI’s ChatGPT Atlas—or a browser that ships OpenAI models. Tabbit gives you GPT access plus Claude, Gemini, and real Agent execution in one free download.
Three ways people mean “open ai browser”
GPT inside my browser
You want OpenAI models while you read—not a separate ChatGPT tab. Tabbit includes GPT alongside other top models.
AI that does the work
Summaries are not enough—you need multi-step Agent runs. Tabbit’s Agent Mode executes in parallel tab groups.
What OpenAI launched
ChatGPT Atlas in 60 seconds
Built-in ChatGPT
Ask, summarize, and rewrite on the page you are viewing.
Chromium base
Familiar extensions and bookmarks—with OpenAI account sign-in.
Plan tiers apply
Advanced models still follow ChatGPT Free / Plus / Team limits.
Not your only option
Power users often want multi-model access + Agent + tab workspaces—Tabbit’s focus.
Beyond a single OpenAI lane
Open AI models—and more—in Tabbit
GPT-5.x
OpenAI models for drafting, coding & analysis
Claude Sonnet / Opus
Long-context reasoning alongside GPT
Gemini 3.1 Pro
Multimodal search & synthesis
DeepSeek & Qwen
Strong regional models in one switch
Kimi & Doubao
China edition picks for local workflows
Agent + Skills
Turn prompts into repeatable automations
Side-by-side
ChatGPT Atlas vs Tabbit
| ChatGPT Atlas | Tabbit Browser | |
|---|---|---|
| What you searched | ChatGPT Atlas — OpenAI’s AI browser | Tabbit — AI-native browser with Agent + Skills |
| OpenAI / GPT access | ChatGPT models inside Chromium | GPT plus Claude, Gemini, DeepSeek, Qwen & regional models |
| Agent execution | Sidebar help; limited multi-step runs | Agent Mode in isolated tab groups |
| Tab workspaces | Standard tabs + ChatGPT panel | Vertical tabs, smart groups & lanes |
| Page context | Chat about the current page | @-reference tabs, screenshots, files & collections |
| Free to start | Free with Plus upsell for advanced models | $0 public beta — models, Agent & tabs included |
| Desktop platforms | macOS first; Windows varies by region | macOS & Windows — same AI stack |
Why download Tabbit
What you get searching “open ai browser”
GPT without vendor lock-in
Use OpenAI models in the same browser as Claude, Gemini, and regional LLMs—switch per task, not per app.
Agent Mode that executes
Delegate research, forms, and cross-site flows in dedicated tab groups while you keep reading elsewhere.
Vertical tabs & workspaces
Full titles, auto-grouping, and project lanes—calmer than a flat strip plus one AI sidebar.
Skills you can reuse
Save prompts and one-line automations; share via Skills marketplace instead of rebuilding ChatGPT threads.
Real workflows
Three jobs Atlas searchers hire Tabbit for
- 1
Draft with GPT, verify with Claude
Write in GPT, cross-check facts with another model—no extension juggling.
- 2
Research → structured report
Agent opens sources, extracts quotes, and delivers a brief—without copy-paste loops.
- 3
Ops across web apps
Run Skills on internal tools—tickets, approvals, weekly checks—parallel to your reading tabs.
FAQ
Open AI browser questions
Is “open ai browser” the same as ChatGPT Atlas?
Yes for most searches. OpenAI’s browser product is ChatGPT Atlas. Typing with or without a space usually lands on the same intent.
Does Tabbit include OpenAI / GPT models?
Yes. Tabbit ships GPT models alongside Claude, Gemini, DeepSeek, Qwen, and more—so you are not limited to Atlas’s ChatGPT-only stack.
Is ChatGPT Atlas the same as Operator?
No. Atlas is a consumer browser. Operator is a separate agent product. Tabbit combines browsing and Agent Mode in one desktop app.
Open AI browser for Windows—does Tabbit work?
Tabbit supports Windows 11 and macOS with the same AI features. Atlas Windows availability varies by region and rollout.
Is Tabbit free compared to Atlas?
Tabbit is in free public beta with Agent, multi-model chat, and smart tabs included. Atlas is free to start but advanced usage follows ChatGPT subscription limits.
Should I uninstall Chrome to try Tabbit?
No. Import bookmarks, passwords, and extensions from Chrome, Edge, or Safari—trial without a painful migration.
When is Atlas enough?
If you only want OpenAI-branded ChatGPT beside your tabs and rarely automate multi-step work, Atlas is fine. Tabbit wins when you need execution, models, and tab control together.
Where do I download Tabbit?
Use the buttons on this page—they open the official site for your region (tabbitbrowser.com international, tabbit-ai.com China) with no invite code.
Want Open AI models—and room to run?
Download Tabbit: GPT, Claude, Gemini, Agent Mode, and workspace tabs in one free AI-native browser.