Perplexity Comet
by Perplexity AI
#3 in Agents that do the workBest free
A free browser with an assistant that reads pages, fills forms and runs web errands. I'd try it before paying for any agent.
What’s good
- Free to download and use
- Handles research, email and shopping tasks
- Runs on Mac, Windows, iOS, Android
Heads-up
- Free agent tasks are credit-limited
- Means switching to a new browser
The details
- Best for
- Free AI browser that does web tasks for you
- Price
- From $20/mo (Perplexity Pro, billed monthly)
- Free plan
- Free browser; agent tasks use limited credits
- Skill level
- Beginner-friendly
- Made by
- Perplexity AI
- Website
- perplexity.ai
- Price checked
- Sep 30, 2026
Where it ranks
- #3Agents that do the workBest free
Compare with similar picks
| Rank in Agents that do the work | #1 | #2 | #3 | #4 |
|---|---|---|---|---|
| Price | From $8/mo | From $20/mo | From $20/mo | From $4.99/mo |
| Free plan | Free plan with limits on uploads, images and voice | Free plan with web search, memory and file creation | Free browser; agent tasks use limited credits | Free plan with Deep Research, images and Gemini Live |
| Best for | Anyone who wants one AI for questions, writing, images and more | Writers, students and pros who want careful, thoughtful answers | Free AI browser that does web tasks for you | People who live in Gmail, Drive and Android |
| Skill level | Any level | Any level | Beginner-friendly | Any level |
| Try it free | Try it free | Try it free | Try it free |
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