Perplexity Comet

Perplexity Comet is a Chromium-based web browser that embeds Perplexity's AI agent directly in the sidebar, where it

Data verified Oct 17, 2026

Pundit
Score

Editorial Verdict

AI-researched, not hands-on tested

Comet is Perplexity's AI browser, available for Mac, Windows, iOS and Android. It has a built-in assistant for research, drafting email replies and delegating tasks such as shopping. It fits people who already use Perplexity and want an assistant inside the browser. The main limitation is that some assistant features are tied to paid plans, and the top plan costs $200/month. Look at Dia, Opera Neon or the open-source Browser Use and Nanobrowser if you want other agent browsers or self-hosted automation.

Reviewed by AIToolPundit Editorial Team · last verified October 2026

About Perplexity Comet

Perplexity Comet is a Chromium-based web browser that embeds Perplexity's AI agent directly in the sidebar, where it stays aware of the active tab and holds context throughout a browsing session. The agent can perform tasks like summarizing articles, drafting emails, and completing purchases, blending Perplexity's answer-engine search into the browsing experience. It runs on the web plus iOS and Android, and became free for all users in October 2025.

Product Video

7 Mind-Blowing Use Cases of Perplexity Comet Agents

Commonly Cited Strengths & Limitations

Strengths

Free to download worldwide (Perplexity announcement dated October 2, 2025)
Available on Mac, Windows, iOS and Android
The assistant is shown handling research comparisons, email reply drafts, study plans and shopping tasks
Optional Comet Plus subscription gives access to premium content from publisher partners, and it is included with Pro and Max

Limitations

Vulnerable to prompt injection because it feeds webpage content to the LLM without separating user instructions from untrusted page content
Up to 85% more vulnerable to phishing and web attacks than Chrome due to lack of built-in phishing protections
Susceptible to CometJacking attacks (flagged by LayerX)
Significant privacy concerns from the extensive personal-data access it requires
Overbearing sidebar and confusing/backward UI layout
Laggy performance with reports of freezing tabs and slow load times
Agentic assistant stumbles on complex tasks, with errors on checkout and booking pages
Reports of unreliability and agentic failures

Common Use Cases

Browsing and web navigation
Research and content summarization
Task automation across websites
Price comparison and shopping
Travel planning
Finance tracking

Details

Pricing Model: Freemium
Starting Price: Free; Comet Plus $5/month; Max $200/month
Team Size: Individuals, Small Business
Headquarters: San Francisco, California, USA
Category: Browser Extensions

Who is Perplexity Comet for?

Researchers and students

The assistant compares coverage across sources and can build study plans from a syllabus.

Busy professionals

It can draft email replies and is pitched for delegating inbox, finance and travel-planning tasks.

Existing Perplexity subscribers

Pro and Max plans include Comet Plus publisher content at no extra cost.

Frequently Asked Questions

Is Perplexity Comet free?

Perplexity Comet offers a free plan, with paid plans starting at Free; Comet Plus $5/month; Max $200/month.

Does Perplexity Comet have an API?

Perplexity Comet does not currently offer a public API.

What does Perplexity Comet integrate with?

Perplexity Comet integrates with CrowdStrike, MDM (Mobile Device Management).

Is Perplexity Comet cloud-based or self-hosted?

Perplexity Comet is offered as a cloud-based (SaaS) deployment.

What are the downsides of Perplexity Comet?

Vulnerable to prompt injection because it feeds webpage content to the LLM without separating user instructions from untrusted page content Also, Up to 85% more vulnerable to phishing and web attacks than Chrome due to lack of built-in phishing protections

Who is Perplexity Comet best for?

Perplexity Comet is best suited for Researchers and students, Busy professionals, Existing Perplexity subscribers.

What can I use Perplexity Comet for?

Common uses for Perplexity Comet include browsing and web navigation, research and content summarization, task automation across websites, price comparison and shopping.

What is the best alternative to Perplexity Comet?

Our reviewed alternatives to Perplexity Comet are Dia, Opera Neon, Brave Leo and Browser Use. Open-source options: Browser Use.

How does Perplexity Comet compare to Dia?

Perplexity Comet and Dia are both used for browser extensions -- specifically browser tools. See the full side-by-side comparison for pricing and feature differences.

Perplexity Comet alternatives we reviewed

Reviewed when this listing was published; open-source options are marked.

See all reviewed alternatives →

Dia
A browser from The Browser Company of New York for work, with cross-tab answers, a Morning Brief and Synthesis reports; available on macOS and Windows.
Visit site →
Opera Neon
A browser built to act on tasks, with separate agents for browsing, deep research and document generation; the page lists a $19.90/month subscription for agentic functions.
Visit site →
Brave Leo
A built-in AI assistant in the Brave browser on desktop and mobile that answers questions and summarizes pages; free to use, with a Premium option.
Visit site →
Browser Use
Open source
Open-source Python library for AI browser agents, plus a hosted Browser Use Cloud.
Visit site →GitHub