Perplexity examples: 12 real use cases with prompts
Source-checked cases, each with what happened and the prompt.
Includes cases labeled Perplexity Comet Assistant (5), Perplexity Comet (4), Perplexity (2), Perplexity agent mode (1). Each case keeps the label its source used.
- Compare contact lens prices across retailers from a prescription with Perplexity and save $150Recreated promptEvidence: Described by posterBeginner-friendly
Needing new contacts after an eye exam (the old lenses were discontinued), Dmitry Shamis found 1-800-CONTACTS expensive, so gave Perplexity the prescription and asked it to find prices. It checked 1-800-CONTACTS, Costco, Walmart and other sites and organized a comparison; Walmart was $150 cheaper for the same contacts, a retailer Shamis hadn't known sold them.
Perplexity · Shopping · Source date:
- Extend a family tree two generations with Claude Code and browser agentsRecreated promptEvidence: Shown on video
Working from the family's archive scans, Claude Code with memory and the Claude browser plugin cross-checked church books, ship manifests and naturalization records, built a 300-page family wiki, and found two more generations in a day; the family is now checking it for errors.
Poster says:300-page family wiki
Claude Code, Claude in Chrome, Perplexity Comet · Research · Source date:
- Summarize English and Tamil YouTube videos with CometImproved promptEvidence: Described by posterPartial
Comet Assistant summarized English YouTube conversations quickly and well, but on a Tamil discussion it had to play the whole video and made a few mistakes, missing some crucial points.
Perplexity Comet Assistant · Research · Source date:
- Apply to LinkedIn jobs from a resume with Perplexity CometRecreated promptEvidence: Screenshots or logs
Comparing Comet and ChatGPT Atlas for LinkedIn job applications, the poster found Comet far better; with a detailed prompt and their resume, it applied to 20+ jobs and sent notes to HR.
Poster says:20+ job applications
Perplexity Comet · Personal · Source date:
Asked to find LinkedIn's refund page and issue a refund for a just-purchased Premium subscription, Comet instead emailed RevenueCat for a refund without the poster approving that final action.
Perplexity Comet Assistant · Personal · Source date:
- Withdraw about 1,000 old LinkedIn invitations with Perplexity's agentImproved promptEvidence: Described by posterFailure
Perplexity Pro's agent mode kept getting tripped up by LinkedIn's infinite scroll, and when asked to withdraw invitations it was painfully slow and got stuck after about 5; the poster had Perplexity write a Cursor prompt for a Selenium script instead.
Perplexity agent mode · Ops · Source date:
- Add flights from a confirmation email to Google Calendar with CometImproved promptEvidence: Screenshots or logsPartial
From a flight confirmation email, Comet Assistant opened Google Calendar and created entries with airports and flight numbers for a NJ–London–Dubai–NJ trip, but the entries didn't span the full flight times and the poster had to fix them by hand and re-prompt for the check-in reminders.
Perplexity Comet Assistant · Travel · Source date:
- Complete a 31-step web form: ChatGPT agent vs Perplexity CometImproved promptEvidence: Described by posterPartial
On a 31-step form with buttons, dropdowns and fields, Comet failed after 3–5 steps, while ChatGPT agent completed all 31 and corrected its own mistakes by checking against the steps.
ChatGPT agent, Perplexity Comet · Ops · Source date:
- Make a complete moving-house checklist with PerplexityEvidence: Screenshots or logsBeginner-friendly
With a house closing the next day and a move a month away, the Get On With It blogger asked Perplexity for an exhaustive, categorized, copyable checklist covering admin, address changes and tasks they might not think of, like checking the new furnace filter. Perplexity returned a checkable list split into pre-move, moving-day and post-move tasks, with cited sources.
Perplexity · Personal · Source date:
On the same Airbnb search, ChatGPT Atlas agent mode and Comet each found properties in about 5 minutes, Claude's extension took 10 minutes to find the first, and MiniMax Agent ran over an hour without giving links.
ChatGPT Atlas agent mode, Perplexity Comet, Claude in Chrome, MiniMax Agent · Travel · Source date: