Comet Browser for Windows

Comet Browser 152.0.7977.199 is a web browser from Perplexity AI with an AI assistant built into it. It is based on Chromium, so websites and many Chrome extensions work as usual, and adds Perplexity's assistant, which can summarise the page you are on, answer questions and help carry out tasks across tabs. The browser is free to download, and you can download Comet Browser for Windows from perplexity.ai or the Microsoft Store.

Specifications and requirements

The requirements come from Perplexity's Comet operating system requirements article.

What the AI assistant adds

In a normal browser you read a page, copy text into an AI chat and paste the answer back. Comet brings the assistant into the browser itself. Open the sidebar on any page and ask for a summary, an explanation of a paragraph or a comparison of products across several open tabs. The assistant can also help with multi-step tasks, such as gathering information from different sites into a list. Search is powered by Perplexity, which answers with sources you can open. Because the assistant can see what is on your pages, it is worth thinking about what you let it read, especially on pages with personal or work data. Models and features change quickly; for a comparison of current AI models, see the AI section of this site.

Installation

1. Install Comet from the Microsoft Store or from the official Comet page.
2. Import bookmarks, passwords and extensions from your current browser if you want.
3. Sign in with a Perplexity account to use the assistant.
4. Review privacy and assistant permissions in the settings.

Recent changes are described in the Comet release notes.

Who it suits

Comet fits people who already use AI assistants daily for research, shopping comparisons or summarising long articles and want that help without switching windows. Students and knowledge workers who juggle many tabs benefit most. If you rarely use AI or prefer to keep browsing data away from AI services, a conventional browser is simpler.

Privacy tips

• Decide whether the assistant may access page content on sensitive sites.
• Check your organisation's rules before using AI features with work documents.
• Verify AI answers, especially figures, quotes and advice.

Pros and cons

• Pro: AI assistant built into the browser.
• Pro: Chromium base with broad website and extension compatibility.
• Pro: supports x64 and ARM64 Windows PCs.
• Con: assistant needs access to page content to help.
• Con: heavier than a plain browser.

Alternatives

Microsoft Edge offers Copilot in its sidebar, and our listings also include Perplexity as a separate app, plus ChatGPT and Microsoft Copilot for Windows. Brave Browser and Vivaldi are Chromium browsers without an AI focus.