Perplexity Comet
Shares rank 38 of 53 web browsers by recommenders
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.
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.
23 people gave an opinion
- recommend it
- 9
- criticize it
- 14
- approval share
- 39%
Recommended in 5 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: not recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 9 people recommend itNeeds 10 or more, not met.
- 0.6 recommenders for every criticNeeds 2 to 1 or better, not met.
- Recommended in 5 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Good browser for everyday use
“has proven to be a pretty good browser”
Comment from 18 Aug 2026 in “Ask HN: Do you feel comfortable admitting that you use AI?” “Oh man I use Comet nearly daily”
Comment from 3 Dec 2025 in “Mistral 3 family of models released”
What people warn about
Each mark is one comment
Prompt injection can steal credentials
“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.”
Comment from 8 Feb 2026 in “OpenClaw Is Changing My Life” “Perplexity Comet and ChatGPT Atlas authenticate using human credentials, making them vulnerable to prompt injection attacks.”
Comment from 6 Nov 2025 in “Open Source Authentication for AI Agents. OIDC + OAuth 2.1” “Your credentials can be easily stolen through prompt injection in Comet and ChatGPT Atlas.”
Comment from 7 Nov 2025 in “Sign in with google but for AI Agents” Privacy concerns over sensitive data access
“As a consumer, I don't think it's very prudent to trust a company with that kind of access to your data”
Comment from 14 Sep 2026 in “Amazon vs. Perplexity – U.S. Court of Appeals for the Ninth Circuit” “This would be akin to Chrome sending the user's (unmodified) URLs to Google.”
Comment from 14 Nov 2025 in “Comet sends all your URLs to Perplexity servers and there's no way to stop it” Heavy memory use and annoying
“their app quickly became a ram-hogging, flaming pile of garbage”
Comment from 24 Feb 2026 in “Show HN:Agentic Browser Automation – Lightweight Selenium and Claude Code Bridge” “I used Comet for a while but found it extremely annoying.”
Comment from 6 Dec 2025 in “Nook Browser”
Other web browsers people recommend
The four most recommended other web browsers, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Firefox | 1,572 | 1,371 | 53% | 12 | 16 yrs125 owners | — |
| Google Chrome | 503 | 1,086 | 32% | 12 | 10 yrs11 owners | — |
| Brave | 397 | 248 | 62% | 12 | 4.9 yrs16 owners | — |
| Safari | 307 | 577 | 35% | 12 | 13 yrs27 owners | — |
| Perplexity CometThis page | 9 | 14 | 39% | 5 | — | — |
What people said
23 of the 26 comments that mention it, newest first. Each links to the original comment.
“As a consumer, I don't think it's very prudent to trust a company with that kind of access to your data”
“has proven to be a pretty good browser”
“their app quickly became a ram-hogging, flaming pile of garbage”
“an AI browser such as Comet or Atlas tied to personal email and banking”
“Neither of which seem to be very popular at this point.”
“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.”
“they haven't developed a dialer app for it yet which seemed a bit weird”
“look at Comet getting blocked on Amazon etc.”
“none of the agentic browsers from the bigger players like Atlas and Comet really took off either”
“sometimes its nice to just be able to highlight text on a page and go”
“If there's any adminstrative errors in the setup blame him not me.”
“the founder is very active and transparent on their Discord”
“CoMET [1] has great AUC even without daily/lifestyle metrics like steps, awakenings at night, or vo2max estimates”
“Comet and Atlas have "enterprise" versions but lack anything to control this.”
“I used Comet for a while but found it extremely annoying.”
“Oh man I use Comet nearly daily”
“I use their browser called Comet for finance related research.”
“It's something Comet can't seem to do.”
“This would be akin to Chrome sending the user's (unmodified) URLs to Google.”
“I can't figure out what it does or how it is better?”
“Beyond Spark (one shouldn't really be using vanilla Spark anyways, see Apache Comet or Databricks Photon)”
“Your credentials can be easily stolen through prompt injection in Comet and ChatGPT Atlas.”
“Perplexity Comet and ChatGPT Atlas authenticate using human credentials, making them vulnerable to prompt injection attacks.”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.