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Perplexity Comet vs Open WebUI

Perplexity Comet: A web browser with an AI assistant that can browse and act for you. Open WebUI: A self-hosted, open-source chat interface for local and cloud AI models. Here is how they compare on features, pricing, platforms, pros and cons.

Quick verdict

Perplexity Comet

Best for: Heavy web users who want research and errands done inside the browser.

Stands out for: Assistant built into the browser; Based on Chromium, so extensions work.

Open WebUI

Best for: Technical teams who want their own private chatbot portal.

Stands out for: Free and open source; Highly customisable.

Side-by-side comparison

Comparison of Perplexity Comet, Open WebUI
Perplexity Comet
Visit perplexity.ai (opens in a new tab)
Open WebUI
Visit openwebui.com (opens in a new tab)
What it isA web browser with an AI assistant that can browse and act for you.A self-hosted, open-source chat interface for local and cloud AI models.
Pricing
Free + Paid
Open source
Free to useYesYes
CategoryAI Chatbots & AssistantsAI Chatbots & Assistants
Editor rank#9 in category#13 in category
Made byPerplexity—
Best forHeavy web users who want research and errands done inside the browser.Technical teams who want their own private chatbot portal.
Key features
  • Assistant in every tab
  • Summarises and compares pages
  • Can carry out browsing tasks
  • Works with local and API models
  • Document upload and retrieval
  • Multi-user accounts and roles
  • Plugin and tool support
Pros
  • Assistant built into the browser
  • Based on Chromium, so extensions work
  • Free and open source
  • Highly customisable
Cons
  • Agent actions can be slow or make mistakes
  • Means switching from your current browser
  • Needs some technical setup to host
Use it to
  • Summarise the page you are reading
  • Ask the assistant to compare products across tabs
  • Let it fill in simple web tasks for you
  • Give your team a private chat app on your own server
  • Chat with internal documents
  • Switch between several models in one place
Web app
Windows
Mac
Linux

Perplexity Comet vs Open WebUI: questions

Is Perplexity Comet better than Open WebUI?

Neither wins for everyone. Our editors rank Perplexity Comet slightly higher overall in AI Chatbots & Assistants, but Open WebUI can be the better fit: Technical teams who want their own private chatbot portal.

Which is free, Perplexity Comet or Open WebUI?

Both can be used without paying: Perplexity Comet is free + paid and Open WebUI is open source. Paid plans add more usage or features.

Can I use Perplexity Comet and Open WebUI together?

Yes. Many people keep both and pick per task, for example summarise the page you are reading with Perplexity Comet, and give your team a private chat app on your own server with Open WebUI.

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