Comparison · as of September 2026
Vassal Agent vs Perplexity Comet
Comet is Perplexity's free AI browser for everyday browsing, with an assistant that can answer questions about pages and act on them. Vassal Agent is a desktop browser for business work, built for repeated prospecting in your signed-in sites, on the AI plan you already have, with a hard approval stop before every send, for $499 a month.
The short answer
Choose Comet if you want a free, everyday AI browser for yourself, with strong built-in search and an assistant that can help on any page.
Choose Vassal Agent if you own a B2B firm and want the prospecting and admin done in your work accounts every week, with every send waiting for your approval and a person to set it up.
Side by side
| Vassal Agent | Perplexity Comet | |
|---|---|---|
| What it is | A desktop browser with an AI agent, for business work | An everyday AI browser with Perplexity's assistant built in |
| Made by | Vassal Agent | Perplexity AI |
| Platforms | macOS; Windows in the works | macOS and Windows, with mobile versions |
| AI model | Yours: Claude, ChatGPT Codex, Gemini, Cursor and other MCP clients | Perplexity's service |
| Before sending or paying | Always stops and asks; rules in plain words; owner-locked team rules; audit log | See Perplexity's documentation for current behavior |
| Repeat work | Workflows recorded by doing a job once; schedules; triggers; exports to spreadsheets and Google Sheets | Background assistants on the Max plan |
| Price | $499/month or $4,990/year, plus your AI plan | Free; paid Perplexity plans raise agent limits (Max is $200/month) |
| Setup and support | Private setup call, one custom workflow, same-day human support | Self-serve |
Where Comet is better
- It is free, and a genuinely good everyday browser.
- Search built in. Perplexity's answer engine is part of the browser.
- More platforms today: Windows and Mac, plus mobile.
- Personal tasks. Shopping, travel, reading and personal email are what it is designed around.
Where Vassal Agent is better
- Built for a business, not a person's day. The jobs, examples and setup are about finding clients, sourcing candidates, researching accounts and keeping records up to date.
- A hard stop before anything leaves. Every send, post, submit, payment and delete waits for Allow. Rules are sentences you can read, owners can lock them for staff, and every action is logged.
- Your own AI, your own data. It runs on the AI plan you choose. Browsing, logins and chats stay on your computer, and we never receive them.
- Repeat work built in. Show it a job once and it becomes a workflow that runs on a schedule or a trigger, with results as tables you can export.
- A person sets it up with you, including one custom workflow built for your business.
Can you use both?
Yes. Many people will keep Comet or another browser for personal use and run business jobs in Vassal Agent, which keeps work sessions and personal browsing apart.
Questions
Is Perplexity Comet free?
Yes. Comet has been free for everyone since October 2025. Paid Perplexity plans, such as Pro and Max, raise the limits on the assistant's agent tasks, and Max adds features such as background assistants.
Is Comet or Vassal Agent better for personal browsing?
Comet. It is a full everyday browser with Perplexity's search built in, and it costs nothing. Vassal Agent is a work tool and is priced like one.
Which AI does each use?
Comet's assistant runs on Perplexity's service. Vassal Agent runs on the AI plan you already have: Claude by default, or ChatGPT's Codex, Gemini, Cursor and other MCP clients.
Where does my data go?
With Comet, what the assistant reads is handled by Perplexity under its privacy policy. With Vassal Agent, your browsing, logins and chats stay on your computer; page content the AI reads goes to your own AI provider under your account, and never to us.
See it on your own work.
Try it free for 7 days with no card. After that it is $499 a month or $4,990 a year, with a private setup call and one custom workflow built with you.