Perplexity Comet: review, pricing, security and alternatives

What Perplexity Comet does

Perplexity Comet belongs to the browser agents family: agents that open pages, click, fill in forms and extract information in place of a human. The directory lists 21 agents in this family.

You use it from: desktop app.

Who is Perplexity Comet for?

It helps people who spend time on websites without an API: it clicks, fills in and reads pages for you. Typical tasks people give it:

• fill in repetitive forms
• collect prices or information across several sites
• test a website's user flow
• fetch documents from a customer portal

Access and human control

According to its documentation, Perplexity Comet can:

• drive a web browser
• read and send messages
• make payments

We could not establish whether it asks for human approval before sensitive actions: test it first on an unimportant account or folder.

Perplexity Comet pricing

The cheapest paid plan that gives access to Perplexity Comet costs $20 per month, according to the official pricing page checked on October 25, 2026.

Agent prices change often and frequently depend on usage (credits, tasks, steps): check the pricing page before committing, especially for a team.

Getting started with Perplexity Comet

1. Create an account on the official website.
2. Give it a first playground with nothing at stake: a test folder, a secondary account or a throwaway project. Only open your real accounts once you have seen how it behaves.
3. Give it a short, checkable task, review the result and its action log, then raise the difficulty step by step.

Security: risk level

Every page visited may hide instructions: do not leave a browser agent logged into sensitive accounts without action approval.

Points found for Perplexity Comet:

• Sensitive access: it can make payments, with no established default human approval.
• Trifecta: access to private data, reading outside content and sending messages. That combination makes data leaks through prompt injection possible.

Three habits: least privilege (minimal rights, dedicated keys), human approval for irreversible actions, a sandbox for code execution. The AI agent security check reviews your setup in a few minutes.

Perplexity Comet's price vs other services

Too few services in the same family publish a price: the chart compares Perplexity Comet with the proprietary agents whose entry price is closest, across all families.

Note: at the same price, included quotas (credits, tasks, messages) vary a lot between services. The entry price tells you what access costs, not how much work it buys.

Perplexity Comet and other browser agents at a glance

The 7 best-ranked agents in the same family, 7 of them open source. The score out of 100 only applies to open-source projects; for proprietary services we show the published entry price. A dash marks information the documentation does not state.

How we rated it

We do not give proprietary agents a score out of 100: there is no public adoption or activity data for them comparable to open-source repositories, and we will not make up a number. This page relies on the vendor's documentation and pricing page, checked on October 25, 2026.

The risk level follows the same rule as for open-source projects: access granted, default human approval and where data is processed. Details on the method page.