Comet is Perplexity's free AI browser with a built-in agent that browses, researches, and completes tasks for you on Windows, Mac, iOS, and Android.
Comet is Perplexity AI's web browser, built on Chromium, with an AI agent embedded natively in the sidebar rather than offered as a separate extension. The agent is aware of the page a user is viewing, can answer questions about it, and can take actions like summarizing content, comparing options across tabs, or completing simple multi-step tasks.
Perplexity, the company behind Comet, was founded in 2022 by Aravind Srinivas, Denis Yarats, Johnny Ho, and Andy Konwinski and is headquartered in San Francisco. Comet launched in mid-2025 as a paid, invite-limited product before becoming free worldwide later that year.
Comet integrates Perplexity's cited-answer search engine directly into browsing, so users can ask questions about a page or the web generally without switching tools. A sidebar assistant retains context across tabs and can be asked to summarize, compare, or research across multiple open pages.
For subscribers on Perplexity's Max plan, Comet includes a background assistant capable of running multi-step tasks (such as research or booking workflows) with less step-by-step supervision, along with access to more capable underlying models for agentic tasks.
The browser also includes a built-in ad blocker and voice mode on mobile, and is available across Windows, macOS, Android, and iOS as of 2026.
Comet itself is free to download and use on all supported platforms. Perplexity monetizes the surrounding ecosystem rather than the browser directly: a $5/month Comet Plus add-on provides AI-enhanced access to publisher news content, and Perplexity's $200/month Max subscription unlocks the most advanced agentic features and top-tier model access inside Comet.
There is no separate business or team pricing tier specific to Comet at this time; it is bundled with Perplexity's consumer subscription plans.
Yes, Comet is free to download and use on Windows, macOS, Android, and iOS. Perplexity Max ($200/month) unlocks more advanced agentic features and top-tier model access inside the browser.
No. Comet here refers to Perplexity AI's agentic web browser. Comet ML is a separate, unrelated company that makes machine learning experiment-tracking software.
Comet launched on Windows and macOS in 2025, followed by Android in November 2025 and iOS/iPadOS in March 2026.
Perplexity has published security documentation and patched several issues, but independent researchers have demonstrated prompt-injection attacks against Comet's agent, so users should be cautious about granting it access to sensitive accounts.
Comet Plus is a separate $5/month add-on that provides AI-enhanced access to publisher news content, distinct from the free Comet browser itself.