Panelize

Panelize: Chrome extension for comparing multiple AI models side by side with a single prompt.

Panelize is a Chrome extension that lets users type a prompt once and send it to multiple AI models simultaneously. It eliminates tab switching by displaying responses in customizable layouts inside a single window. The extension works with existing user logins for providers like ChatGPT, Claude, Gemini, Grok, DeepSeek, and others without requiring API keys. It includes a prompt library with variable support for efficient reuse. The project is open source and processes all data locally in the browser.

Panelize at a glance

Best for: Software engineer
Runs on: Chrome extension, Web
Pricing: Free
Released: October 2026
Category: AI chat assistant
Website: github.com/manho/panelize

Key features

Simultaneous multi-model prompting
Twenty-two flexible layouts
Prompt library with variable support
One-click privacy mode
Open source codebase
Local browser data processing

Use it for

Comparing responses from ChatGPT, Claude, and Gemini
Running deep research across twelve models at once
Reusing saved prompts with custom variables

Alternatives to Panelize

ChatGPTBox — It offers deep browser integrations and multiple API options completely for free.
Character AI Chat Exporter — Exports chats in minutes instead of weeks with local data storage.
Best Prompt Generator Extension — Applies prompt engineering frameworks to improve AI output automatically.
Voyager — Organize AI chats with folders and save prompts.
Chatbox — Chat with multiple AI models and local documents using your own API keys.
Page Assist — Interact directly with local AI models on any webpage via a sidebar and web UI.
ContextPod — Transfers full conversation history between different AI chat platforms.
Thinkbeside — Connect GPT, Claude, Gemini, DeepSeek and Grok to any webpage using your own API keys.
5ire — It supports local knowledge base management and Model Context Protocol servers.
HuggingChat UI — It provides a customizable open source chat interface for any OpenAI-compatible backend.
ChatALL — Compare many AI chatbots on the same prompt at once
Chat UI — It runs instantly anywhere with a web browser and weighs under 100 KB.

All Panelize alternatives