Perplexity Comet

Comet is Perplexity's AI-first web browser, built on Chromium so it feels familiar, with an assistant layered underneath that can read the page you are on, summarize it, compare information across your open tabs, and carry out multi-step tasks — composing emails, scheduling meetings, filling forms and making purchases — from a plain-language instruction.

Key facts: Comet launched in July 2025 behind a $200/month Perplexity Max paywall, then went free for everyone worldwide on October 2, 2025. It now runs on Mac, Windows, iOS and Android. Its sidebar assistant answers with visible, checkable sources — the same engine behind Perplexity search — which makes it strongest for research and fact-checking rather than blind answers.

Plans: the browser and its assistant are free. Autonomous background agents and premium models require Perplexity Pro or Max, and Comet Plus — a $5/month subscription for premium publisher content — is included with Pro and Max.

Best for: students, journalists, analysts and anyone who lives in open tabs, PDFs and deep research all day. Watch out: the most autonomous agent features sit behind paid plans, and agentic browsers are still legally contested ground — Amazon sued Perplexity over Comet's shopping agent, though a US appeals court vacated the injunction in August 2026.

Pros

• A free AI browser with an assistant that reads the page you are on.
• Summarises pages and compares information across open tabs.
• Carries out multi-step tasks such as composing emails, scheduling meetings and filling forms.
• Built on Chromium, so it feels familiar to Chrome users.

Watch out for

• Agentic tasks need checking before anything is sent, booked or bought.
• Giving a browser task access across tabs means trusting it with open-page content.
• It is a newer browser, so some extensions and workflows may behave differently.

Best for

Researchers and busy professionals who want an assistant inside the browser itself. Who should skip it: users who only need search, or who prefer a plain browser, should use Perplexity search or a mainstream browser.

Pricing

Comet is free; check the official pricing page for current plans and limits.

FAQs

What is Comet? Perplexity's free AI browser with a built-in assistant.

What can the assistant do? Read the page you are on, summarise it, compare tabs, and carry out multi-step tasks from plain-language instructions.

Is it based on Chrome? It is built on Chromium, so it feels familiar.