Complete an online course assignment in the browser
Perplexity Comet was prompted to complete a Coursera web design assignment and appeared to finish it in a short clip; the CEO told people not to do this.
What they did
A developer used Perplexity's agentic Comet browser on a Coursera course page. The only prompt shown was a short instruction to complete the assignment. Comet read the page and worked through what looked like a 45-minute web design assignment by itself. The developer posted a screen clip on X and tagged Perplexity and its CEO.
How it went
The 16-second clip shows Comet apparently finishing the whole assignment. The article doesn't say whether the work was graded or correct. CEO Aravind Srinivas replied publicly: "Absolutely don't do this."
Worth knowing
Fortune cites security audits that found Comet can follow hidden instructions on web pages and complete purchases on fake sites without human checks, so supervise it closely.
Labels
Perplexity Comet was prompted to complete a Coursera web design assignment
A developer used Perplexity's agentic Comet browser on a Coursera course page.
The only prompt shown was a short instruction to complete the assignment.
Comet read the page and worked through what looked like a 45-minute web design assignment by itself.
The 16-second clip shows Comet apparently finishing the whole assignment. The article doesn't say whether the work was graded or correct.
The “Material” label failed its quality check and is not used for selection.
Details
- Agents
- Perplexity Comet
- Source
- news
- Source date
- Oct 10, 2025
- Accounts
- 2
- In registry since
- Oct 12, 2026