Side-by-Side AI

Tracking since Apr 17, 2026.

Changelog

• May 28, 2026
  description

  Warning:
  Side-by-Side AI is a web UI integration extension, not a standalone AI service or built-in chat UI.
  It works by opening supported AI websites inside a split-screen workspace, so you must sign in to each AI website in advance before using the extension.
  
  Side-by-Side AI lets you use multiple AI chat websites in one split-screen workspace.
  
  Features:
  - Open multiple AI sites side by side
  - Broadcast one prompt to selected sites
  - @ mention to target specific sites
  - # focus mode to expand one site quickly
  - Combine the latest visible replies from active AI panes into one follow-up prompt
  - Start a new chat across currently opened sites
  - Save local prompt history with session recall
  - Restore previous site session URLs after reload
  - Add custom sites and request permission per site at runtime
  - Support image paste/drag upload on supported sites
  - Support light/dark theme and language options
  
  Privacy:
  - No account signup is required for the extension itself
  - No remote server is required for core features
  - Data is stored locally in Chrome storage
  - Custom sites are only enabled after user-granted site permission
  
  Update notes for v0.3.0:
  - Added Compatibility Mode for AI sites that do not work reliably in the default split-pane view
  - Added Perplexity support in Compatibility Mode
  - Added a collapsible Legacy Mode input bar for more screen space
  - Added a custom follow-up template for Combine Latest when the prompt box is empty
  - Improved Compatibility Mode dock sizing and restored settings/history panel behavior
  - Improved default site guidance and mode descriptions
  - Fixed Legacy Mode input collapse/restore positioning
  - Fixed Claude response extraction in Legacy Mode
  - Improved runtime routing and response collection reliability across supported sites
  
  Update notes for v0.3.0:
  - Added Compatibility Mode for AI sites that do not work reliably in the default split-pane view
  - Added Perplexity support in Compatibility Mode
  - Added a collapsible Legacy Mode input bar for more screen space
  - Added a custom follow-up template for Combine Latest when the prompt box is empty
  - Improved Compatibility Mode dock sizing and restored settings/history panel behavior
  - Improved default site guidance and mode descriptions
  - Fixed Legacy Mode input collapse/restore positioning
  - Fixed Claude response extraction in Legacy Mode
  - Improved runtime routing and response collection reliability across supported sites
  
  Update notes for v0.2.0:
  - Added one-click latest-reply combination for follow-up prompting
  - Improved send progress feedback across sites
  - Improved multiline prompt injection reliability
  - Improved session restore and local history capture
  - Fixed input bubble dragging and resizing behavior

  Warning:
  Side-by-Side AI is a web UI integration extension, not a standalone AI service or built-in chat UI.
  It works by opening supported AI websites inside a split-screen workspace, so you must sign in to each AI website in advance before using the extension.
  
  Side-by-Side AI lets you use multiple AI chat websites in one split-screen workspace.
  
  Features:
  - Open multiple AI sites side by side
  - Broadcast one prompt to selected sites
  - @ mention to target specific sites
  - # focus mode to expand one site quickly
  - Combine the latest visible replies from active AI panes into one follow-up prompt
  - Start a new chat across currently opened sites
  - Save local prompt history with session recall
  - Restore previous site session URLs after reload
  - Add custom sites and request permission per site at runtime
  - Support image paste/drag upload on supported sites
  - Support light/dark theme and language options
  
  Privacy:
  - No account signup is required for the extension itself
  - No remote server is required for core features
  - Data is stored locally in Chrome storage
  - Custom sites are only enabled after user-granted site permission
  
  Update notes for v0.3.1:
  - Fixed image paste/drag upload delivery in Legacy Mode for Gemini
  - Improved attachment handoff reliability for supported sites in the split-pane workspace
  - Verified image paste upload behavior for Gemini, Claude, and ChatGPT in Legacy Mode
  
  Update notes for v0.3.0:
  - Added Compatibility Mode for AI sites that do not work reliably in the default split-pane view
  - Added Perplexity support in Compatibility Mode
  - Added a collapsible Legacy Mode input bar for more screen space
  - Added a custom follow-up template for Combine Latest when the prompt box is empty
  - Improved Compatibility Mode dock sizing and restored settings/history panel behavior
  - Improved default site guidance and mode descriptions
  - Fixed Legacy Mode input collapse/restore positioning
  - Fixed Claude response extraction in Legacy Mode
  - Improved runtime routing and response collection reliability across supported sites
  
  Update notes for v0.2.0:
  - Added one-click latest-reply combination for follow-up prompting
  - Improved send progress feedback across sites
  - Improved multiline prompt injection reliability
  - Improved session restore and local history capture
  - Fixed input bubble dragging and resizing behavior

• May 15, 2026
  description

  Warning:
  Side-by-Side AI is a web UI integration extension, not a standalone AI service or built-in chat UI.
  It works by opening supported AI websites inside a split-screen workspace, so you must sign in to each AI website in advance before using the extension.
  
  Side-by-Side AI lets you use multiple AI chat websites in one split-screen workspace.
  
  Features:
  - Open multiple AI sites side by side
  - Broadcast one prompt to selected sites
  - @ mention to target specific sites
  - # focus mode to expand one site quickly
  - Combine the latest visible replies from active AI panes into one follow-up prompt
  - Start a new chat across currently opened sites
  - Save local prompt history with session recall
  - Restore previous site session URLs after reload
  - Add custom sites and request permission per site at runtime
  - Support image paste/drag upload on supported sites
  - Support light/dark theme and language options
  
  Privacy:
  - No account signup is required for the extension itself
  - No remote server is required for core features
  - Data is stored locally in Chrome storage
  - Custom sites are only enabled after user-granted site permission
  
  Update notes for v0.2.0:
  - Added one-click latest-reply combination for follow-up prompting
  - Improved send progress feedback across sites
  - Improved multiline prompt injection reliability
  - Improved session restore and local history capture
  - Fixed input bubble dragging and resizing behavior

  Warning:
  Side-by-Side AI is a web UI integration extension, not a standalone AI service or built-in chat UI.
  It works by opening supported AI websites inside a split-screen workspace, so you must sign in to each AI website in advance before using the extension.
  
  Side-by-Side AI lets you use multiple AI chat websites in one split-screen workspace.
  
  Features:
  - Open multiple AI sites side by side
  - Broadcast one prompt to selected sites
  - @ mention to target specific sites
  - # focus mode to expand one site quickly
  - Combine the latest visible replies from active AI panes into one follow-up prompt
  - Start a new chat across currently opened sites
  - Save local prompt history with session recall
  - Restore previous site session URLs after reload
  - Add custom sites and request permission per site at runtime
  - Support image paste/drag upload on supported sites
  - Support light/dark theme and language options
  
  Privacy:
  - No account signup is required for the extension itself
  - No remote server is required for core features
  - Data is stored locally in Chrome storage
  - Custom sites are only enabled after user-granted site permission
  
  Update notes for v0.3.0:
  - Added Compatibility Mode for AI sites that do not work reliably in the default split-pane view
  - Added Perplexity support in Compatibility Mode
  - Added a collapsible Legacy Mode input bar for more screen space
  - Added a custom follow-up template for Combine Latest when the prompt box is empty
  - Improved Compatibility Mode dock sizing and restored settings/history panel behavior
  - Improved default site guidance and mode descriptions
  - Fixed Legacy Mode input collapse/restore positioning
  - Fixed Claude response extraction in Legacy Mode
  - Improved runtime routing and response collection reliability across supported sites
  
  Update notes for v0.3.0:
  - Added Compatibility Mode for AI sites that do not work reliably in the default split-pane view
  - Added Perplexity support in Compatibility Mode
  - Added a collapsible Legacy Mode input bar for more screen space
  - Added a custom follow-up template for Combine Latest when the prompt box is empty
  - Improved Compatibility Mode dock sizing and restored settings/history panel behavior
  - Improved default site guidance and mode descriptions
  - Fixed Legacy Mode input collapse/restore positioning
  - Fixed Claude response extraction in Legacy Mode
  - Improved runtime routing and response collection reliability across supported sites
  
  Update notes for v0.2.0:
  - Added one-click latest-reply combination for follow-up prompting
  - Improved send progress feedback across sites
  - Improved multiline prompt injection reliability
  - Improved session restore and local history capture
  - Fixed input bubble dragging and resizing behavior

• May 15, 2026
  short_description

  Open-source multi-AI split screen with prompt broadcast and local history.

  Multi-AI prompt broadcast with multi-window tiling and local session history.

• May 15, 2026
  host_permissions

  https://chatgpt.com/*, https://chat.openai.com/*, https://chat.deepseek.com/*, https://www.kimi.com/*, https://chat.qwen.ai/*, https://www.doubao.com/*, https://yuanbao.tencent.com/*, https://grok.com/*, https://claude.ai/*, https://gemini.google.com/*

  https://chatgpt.com/*, https://chat.openai.com/*, https://chat.deepseek.com/*, https://www.kimi.com/*, https://kimi.com/*, https://chat.qwen.ai/*, https://www.doubao.com/*, https://doubao.com/*, https://yuanbao.tencent.com/*, https://grok.com/*, https://claude.ai/*, https://gemini.google.com/*, https://www.perplexity.ai/*, https://perplexity.ai/*

• May 15, 2026
  permissions

  storage, declarativeNetRequest

  storage, declarativeNetRequest, scripting, tabs, windows, system.display

Permissions & access

Permissions

storagedeclarativeNetRequestscriptingtabswindowssystem.display

Host access

https://chatgpt.com/*, https://chat.openai.com/*, https://chat.deepseek.com/*, https://www.kimi.com/*, https://kimi.com/*, https://chat.qwen.ai/*, https://www.doubao.com/*, https://doubao.com/*, https://yuanbao.tencent.com/*, https://grok.com/*, https://claude.ai/*, https://gemini.google.com/*, https://www.perplexity.ai/*, https://perplexity.ai/*

Screenshots

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