# Perplexity Comet

9 Hacker News commenters recommended Perplexity Comet and 14 criticized it, November 2025 to November 2026. It was recommended in 5 of 13 months.

**Verdict:** Free AI browser from Perplexity that people use daily for research and highlighting text. Critics warn that prompt injection can expose logins, email and banking accounts.

## Why people recommend it

- Good browser for everyday use (2 comments): "has proven to be a pretty good browser" ([source](https://news.ycombinator.com/item?id=49352809)) "Oh man I use Comet nearly daily" ([source](https://news.ycombinator.com/item?id=46129717))

## What people warn about

- Prompt injection can steal credentials (3 comments): "Anyone who thinks they can avoid LLM Prompt injection attacks should be asked to use their email and bank accounts with AI browsers like Comet." ([source](https://news.ycombinator.com/item?id=46935678)) "Perplexity Comet and ChatGPT Atlas authenticate using human credentials, making them vulnerable to prompt injection attacks." ([source](https://news.ycombinator.com/item?id=45837062)) "Your credentials can be easily stolen through prompt injection in Comet and ChatGPT Atlas." ([source](https://news.ycombinator.com/item?id=45848285))
- Privacy concerns over sensitive data access (2 comments): "As a consumer, I don't think it's very prudent to trust a company with that kind of access to your data" ([source](https://news.ycombinator.com/item?id=49705217)) "This would be akin to Chrome sending the user's (unmodified) URLs to Google." ([source](https://news.ycombinator.com/item?id=45931189))
- Heavy memory use and annoying (2 comments): "their app quickly became a ram-hogging, flaming pile of garbage" ([source](https://news.ycombinator.com/item?id=47135309)) "I used Comet for a while but found it extremely annoying." ([source](https://news.ycombinator.com/item?id=46172075))

## Alternatives hackers recommend

- [Google Chrome](https://hackerapproved.com/p/google-chrome.md): 503 recommend
- [Zen Browser](https://hackerapproved.com/p/zen-browser.md): 141 recommend
- [Vivaldi](https://hackerapproved.com/p/vivaldi-browser.md): 134 recommend
- [Microsoft Edge](https://hackerapproved.com/p/microsoft-edge.md): 102 recommend
- [qutebrowser](https://hackerapproved.com/p/qutebrowser.md): 11 recommend

## Cite as

Hacker Approved, "Perplexity Comet", https://hackerapproved.com/p/comet/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).