What is Comet?
Comet is Perplexity's web browser for Mac, Windows, iOS and Android with a built-in AI assistant. Perplexity says the assistant can work across several tabs on multi-step jobs, such as searching major sites for the cheapest flight, and describes it handling tasks like booking hotels and flights. It asks before running a task directly in your browser and adds a confirmation step when it needs to fill in user details it does not already know.
Cost: Free + paid plan (Paid from US$20 per month). Booking: Books for you on paid plans. Works on: iPhone, Android.
Best for: Perplexity subscribers who want an agent to compare fares and work through booking sites inside their own browser.
How Comet uses AI
The Comet Assistant navigates sites, clicks buttons and fills in forms across multiple tabs to complete tasks you describe, pulling context from the pages it visits.
Booking: Books for you on paid plans. Check who the seller is before you confirm: their change and refund rules apply to anything it books.
Keep in mind
- Comet browser agent queries are not included in Perplexity's Free plan; Pro has monthly limits
- Running many agentic tasks in parallel is a Max-plan feature
- Comet asks for approval before acting on connected services and before filling in unknown user details
Is Comet free? Cost and plans
Free + paid plan. The browser is free to download; assistant (agent) queries need a Perplexity Pro ($20/month) or Max subscription and are subject to usage limits.
| Plan | Price | Region | Checked |
|---|---|---|---|
| Perplexity Pro | US$20 per month | US | Source, |
Prices are shown in the currency and region the provider published. We do not convert them.
Also from Perplexity
Comet alternatives
Tools for a similar task. Sharing a task does not make them interchangeable, so compare what each one does.
Sources
Sources checked . This listing summarises what the provider and other cited sources say; it is not a hands-on test.
- Comet Browser: a Personal AI Assistantperplexity.ai, checked . Supports: AI browser that acts as a personal assistant; available for Mac, Windows, iOS and Android; planning vacations among delegated tasks
- The New Comet Assistant (Perplexity blog, 6 November 2025)perplexity.ai, checked . Supports: Multi-step tasks across tabs; cheapest-flight search example; asks before running a task in the browser
- Mitigating Prompt Injection in Comet (Perplexity blog)perplexity.ai, checked . Supports: Comet helps get things done including booking hotels; confirmation step when filling in user details it does not know
- Computer for Pro subscribers, Computer for Slack (Perplexity changelog, March 2026)perplexity.ai, checked . Supports: Comet Assistant handles autonomous multi-step tasks like booking flights and filling forms
- Comet now available for everyone, background assistants (Perplexity changelog)perplexity.ai, checked . Supports: Comet free to download for everyone; Max subscribers can run many agentic tasks in parallel
- Which Perplexity Subscription Plan is right for you? (Perplexity Help Center)perplexity.ai, checked . Supports: Free plan excludes Comet browser agent queries; Pro and Max have monthly Comet Assistant limits
- Perplexity – Ask Anything (App Store)apps.apple.com, checked . Supports: Perplexity Pro in-app purchase $20.00 a month (US)
What we could not confirm
- The catalogue's form list has no desktop-app value; Comet also runs on Mac and Windows
- Perplexity's November 2025 blog says the new assistant launched to all users, while the current help centre excludes agent queries from the Free plan
- Which travel sites Comet works reliably on is not documented