ChatHub

Every AI model answers differently — one writes better copy, another codes better, a third thinks more creatively. ChatHub lets you see all of them at once: type one prompt and compare ChatGPT, Claude, Gemini, Grok, and 20+ models side by side. This guide covers what ChatHub does, how it works, and why comparing models is worth your time.

For more AI tools, explore the AI Tools directory and our best AI tools in 2026 roundup.

What is ChatHub?

ChatHub is a browser extension that compares AI chatbots side by side. Instead of opening ChatGPT in one tab, Claude in another, and Gemini in a third, ChatHub lets you send a single prompt to multiple models at once and view all the responses together.

It supports 20+ AI services, including:

• ChatGPT (all models)
• Claude (Anthropic)
• Gemini (Google)
• Grok (xAI)
• And many more

It works as a Chrome/Edge extension, and offers an all-in-one chat mode where you can use all your AI accounts from a single window.

How ChatHub works

The comparison workflow is elegant:

1. Install the extension and connect your AI accounts (ChatGPT, Claude, etc.).
2. Type one prompt in the ChatHub panel.
3. Select the models you want to compare.
4. ChatHub sends the prompt to all of them simultaneously.
5. Responses appear side by side for instant comparison.

Because you’re using your own accounts, you get the full power of each model — ChatHub just orchestrates them. No single AI is hidden behind a weaker proxy.

Key features of ChatHub

Side-by-side model comparison

The core feature: one prompt, many answers, side by side. See exactly how models differ in quality, tone, and approach for your specific task.

20+ AI services supported

Compare across ChatGPT, Claude, Gemini, Grok, and more — the broadest multi-model comparison available.

All-in-one chat

Beyond comparison, use all your AI services from a single window — no more switching between tabs and accounts.

Prompt testing and refinement

Perfect for developers and prompt engineers iterating on prompts: test variations across models and pick the best-performing version.

Uses your own accounts

No middleman quota: ChatHub connects to your existing AI subscriptions, so you get full model access.

ChatHub vs. other AI tools

	ChatHub	Sider	Monica
Compare models side-by-side	✅ Core feature	❌	❌
Models connected	20+ (your accounts)	30+ (built-in)	GPT/Claude/Gemini
Text actions on selection	❌	✅	✅
Best for	Choosing the right model	Reading/research	Writing

ChatHub is specialized: it’s the best tool for deciding which AI to use for your tasks. Sider and Monica are better for using AI throughout your browsing. They’re complementary rather than competitive.

Who is ChatHub for?

• Curious users evaluating which AI to subscribe to.
• Prompt engineers and developers refining prompts.
• Researchers comparing model answers.
• Content creators finding the best AI for each type of content.

It’s not for casual single-AI users who don’t care about comparison, or for users who want image generation or voice chat. If you already know your one favorite model, HotBot or a dedicated chatbot may be simpler.

How to get started with ChatHub

1. Install ChatHub from the Chrome Web Store (or Edge Add-ons).
2. Connect your accounts — ChatGPT, Claude, Gemini, and others.
3. Type a prompt and select multiple models.
4. Compare the responses side by side.
5. Refine your prompt based on what you see.

Start with a prompt you actually care about — the comparison is most useful when you’re evaluating real work, not test questions.

The bottom line

ChatHub answers the question everyone eventually asks: which AI is actually best for my work? By showing ChatGPT, Claude, Gemini, and 20+ models answering the same prompt side by side, it turns a subjective debate into an instant visual comparison. If you use multiple AIs — or are deciding which to use — it’s an essential tool.

For the rest of your AI stack, combine ChatHub with Monica or Sider for browsing assistance, and NotebookLM for research.

Official resource: ChatHub.