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BrowserOS puts AI chat at your fingertips. Open a chat panel on any webpage to ask questions with full page context, or compare responses across multiple LLMs side-by-side.

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LLM Chat

Click the Chat button in the toolbar (or press Option+K) to open an AI chat panel on any webpage. LLM Chat panel open on a webpage

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Features

  • Switch providers instantly — Use the dropdown or press Option+L to cycle between Claude, ChatGPT, and Gemini
  • Copy page context — Grab the current webpage content to paste into your prompt
  • Screenshot and attach — Capture the visible page as an image for visual questions
  • Works everywhere — The panel stays open as you browse

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Toolbar Buttons

LLM Chat toolbar buttons
IconAction
CopyCopy webpage content to clipboard
ImageScreenshot webpage and copy
RefreshReset LLM chat
ExternalOpen LLM in new tab
MenuAdditional options + Popout LLM Hub

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Keyboard Shortcuts

ShortcutAction
Option+KToggle chat panel
Option+LSwitch to next provider

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LLM Hub (Clash of GPTs)

Click the Hub button in the toolbar (or press Cmd+Shift+U) to open a multi-pane comparison window. LLM Hub with three panes showing Claude, Gemini, and ChatGPT The Hub lets you query multiple LLMs simultaneously:
  1. Choose 1, 2, or 3 panes using the panel selector in the top-right
  2. Select which LLM to use in each pane (Claude, Gemini, or ChatGPT)
  3. Paste your prompt into each pane and compare responses
This is useful when you want an “LLM council” — get multiple perspectives on a question and see where the models agree or differ.

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Customization

Control which buttons appear in your toolbar from Settings → Customization:
  • Show Chat Button — Display the Chat button in the toolbar
  • Show Hub Button — Display the Hub button in the toolbar
  • Show Button Labels — Display text labels next to toolbar icons