ChatGPT拡張
導入は早いが、コンテキストは選択範囲に限られ、タブ管理は手動。
GPT内蔵 · Agent Mode · Mac/Windows無料
AI Browser ChatGPT
TabbitはChatGPTを本物のAIブラウザに組み込みます。任意のページについて質問し、ClaudeやGeminiに切り替え、Agent Modeに多段階タスクを任せながら閲覧を続けられます。
選ぶ道
ブラウザでChatGPTを使う3つの方法
ChatGPT Atlas
ネイティブサイドバーとスマート検索 — macOS優先、OpenAIモデルのみ。
Tabbit Browser
GPT内蔵、Agent実行、モデル切替、垂直ワークスペースをMac/Windowsで。
使い方
最後まで完了するChatGPTワークフロー
- 1
Omniboxから質問
URL、質問、タスクを入力。GPTが現在のページを読み取り — タブ間のコピペ不要。
- 2
@で参照
タブ、スクリーンショット、PDF、コレクションをコンテキストに。
- 3
Agent Modeに引き渡し
チャットだけでは足りないとき、Agentが独立タブグループでフォームや調査を実行。
GPTとその先
ChatGPTに加えて信頼できるモデルも
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
AI Browser ChatGPT：拡張 vs Atlas vs Tabbit
| 拡張 | 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 |
実際の用途
TabbitでChatGPTを使うシーン
タブ混乱なしの調査
GPTが要約、Agentがソースをグループ化ワークスペースに集約。
ページ文脈で執筆
@でブリーフや競合タブを参照 — 開いている事実に基づいて下書き。
退屈なクリックを自動化
経費、フォーム、構造化データ。Agentがループを処理。
FAQ
AI Browser ChatGPT — よくある質問
Does ChatGPT have an AI browser?
Yes. OpenAI launched ChatGPT Atlas — a Chromium browser with ChatGPT built into a sidebar. Tabbit is another AI browser with GPT access, plus Agent Mode, multi-model switching, and macOS + Windows support in one free download.
What is the new AI browser by ChatGPT?
ChatGPT Atlas is OpenAI’s AI browser: browse the web with ChatGPT beside every page for summaries, answers, and light automation. Tabbit goes further with executable Agent tasks, vertical tab workspaces, and Claude or Gemini alongside GPT.
Is the ChatGPT browser free?
ChatGPT Atlas has a free tier; advanced models may require ChatGPT Plus. Tabbit’s public beta is free on macOS and Windows with GPT, Agent Mode, and tab tools included — no invite code.
What is another AI browser like ChatGPT?
Tabbit is a strong ChatGPT-style AI browser: built-in GPT, page-aware chat, and autonomous Agent runs. Unlike Atlas-only stacks, you can switch models and keep research in organized tab groups.
Can I use GPT inside Tabbit without a separate extension?
Yes. Tabbit is an AI-native browser — GPT lives in the Omnibox and side panel, not as a bolt-on extension. Type a question, @-reference what you see, or launch Agent Mode from the same input.
Is Tabbit better than ChatGPT Atlas on Windows?
If you need Windows today, Tabbit ships the full AI browser stack on macOS and Windows. Atlas availability varies by region; Tabbit also adds Agent tab groups and non-OpenAI models in one app.
Do I need ChatGPT Plus for 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 current model lineup.
How is Tabbit different from a ChatGPT Chrome extension?
Extensions overlay chat on top of a normal browser. Tabbit rebuilds browsing around AI — vertical tabs, @ context, Skills shortcuts, and Agent lanes that run multi-step work without you babysitting every click.
ChatGPT内蔵AIブラウザをダウンロード
macOS/Windows無料。GPT、Agent Mode、垂直タブ — 招待コード不要。