Perplexity lessons: research, modes, files, plans, prompts
Reference lessons to use after the step-by-step tutorial.
How to research with Perplexity
- Write the question with a place, a date range and a source rule.
- Read the answer, then open the sources.
- Ask: "Which claims have only one source? Which sources are older than a year?"
- Ask for a table with a link and a date for every row.
- Spot-check two rows by hand before you use it.
Research question: [question]
Sources: official sites, government pages, or the company's own pages only.
For each claim give: the claim, a quoted sentence, the link, the date of the page.
Then list anything you could find only one source for.Picking the right search mode
| Mode | Good for | Watch out for |
|---|---|---|
| Quick search | Single facts, definitions | Shallow answers on hard topics |
| Pro Search | Questions with several parts | Uses more of your plan's allowance (amounts not confirmed) |
| Deep Research | Report-length comparisons | It takes longer and makes many claims, so check them |
Library, Spaces and Pages
Your Library holds your threads (App Store listing). Spaces and Pages are described on Perplexity's site, but the help pages explaining them blocked us, so check the app for the details.
- One Space per project, with standing instructions.
- Delete threads that contain personal information.
- Before sharing a Page, remove names and numbers.
Files and privacy
- Strip account numbers and IDs before uploading.
- Ask for page numbers with every extracted figure.
- Don't upload other people's private documents.
From the attached file, list every date, dollar amount and deadline.
For each, give the page number and the exact sentence.
If something is unclear, say "unclear" instead of guessing.Plans and prices
From the US App Store listing: Perplexity Pro is listed at $20.00 and $200.00, Max at $200.00, and credits at 500 for $5, 1,000 for $10, 2,500 for $25 and 5,000 for $50. The listing doesn't state billing periods. Subscriptions renew automatically unless you cancel 24 hours before the period ends.
perplexity.ai's own help and plan pages blocked our checker on Oct 29, 2026 (403 errors), so we confirmed what we could from Perplexity's App Store listing and its developer docs at docs.perplexity.ai.
Common mistakes and fixes
| Mistake | Fix |
|---|---|
| Quoting a number you never opened | Open the source and find the number on the page |
| Using a blog as a source | Ask for official sources only |
| One-word questions | Add a place, a date and the format you want |
| Uploading unredacted documents | Redact first |
| Paying for the wrong period | Check monthly vs yearly at checkout |
| Using the app's output in production code | Use the API, which is billed and documented separately |
Prompt library (bad vs good)
Bad: cheap flights to Tokyo
Good: What are typical round-trip economy fares from LAX to Tokyo in March? Use airline and Google Flights pages, give dates you saw them, and say if prices are estimates.
Why: a route, a month and a note about how reliable the numbers are.
Bad: is my landlord allowed to
Good: Under California law, how much notice must a landlord give before entering a rental? Use leginfo.legislature.ca.gov or courts.ca.gov and quote the section.
Why: a state, an official source and a quote.
Bad: summarize this
Good: Summarize the attached PDF in 5 bullets for a busy manager, then list 3 numbers I should double-check, with page numbers.
Why: an audience, a length and things to check.
Perplexity vs other bots
Pick Perplexity when you need sources first. ChatGPT, Claude and Gemini can also search the web, but their main strength is writing and reasoning. See ChatGPT, Claude and Gemini.
Use-case playbooks
Price check with sources
- Ask for options with price, date and source link in a table.
- Ask: which claims rest on only one source?
- Open each official page and confirm the price.
- Save the table with the date you checked.
Literature or news scan
- Ask for the 5 most relevant sources from the last 12 months.
- Ask for one-sentence summaries with the date of each.
- Open the two most important sources yourself.
- Write your own conclusion from what you read.
Vendor shortlist
- List your must-haves first.
- Ask Pro Search to compare 5 vendors against them with links.
- Drop any vendor whose claims you can't confirm on its own site.
Animated walkthrough
Animated walkthrough
Press play, or pick a chapter. Each chapter animates its steps.
Troubleshooting
I hit a limit. What now?
We couldn't read Perplexity's plan pages (blocked), so we can't confirm per-plan Pro Search or Deep Research counts. Start a new chat with a short summary instead of dragging a long one.
The answer cites a page that doesn't say that.
Treat the claim as unverified. Ask: quote the exact sentence from that page that supports this, or say it isn't there. Then open the page yourself.
It forgot my earlier instructions.
Long chats push early text out of context. Put standing instructions where Perplexity keeps them (Library (past threads). The website also mentions Spaces and Pages; we couldn't open the help pages that explain them, so check them in the app.) and start a fresh chat.
It agrees with everything I say.
Ask it to argue the other side and list the strongest evidence against your view, with sources.
How do I keep costs down?
App Store in-app purchases list Pro, Max and credit packs. The API is billed separately with prepaid credits. Start with quick search and step up only when the answer is thin.
Cost control
We couldn't read Perplexity's plan pages (blocked), so we can't confirm per-plan Pro Search or Deep Research counts.
- Test with the free tier on real tasks for a week first.
- Set a calendar reminder 2 days before any renewal.
- Keep one paid assistant, not three, unless each earns its place.
Prompt library: bad vs good
Bad: help me
Good: Which US prepaid phone plans under $30/month include 5G hotspot data as of this month? Use carrier websites only and give the price and data cap for each.
Why: situation, task, format and limits.
Bad: research this
Good: Find the 5 most relevant official sources from the last 12 months on [topic]. For each: title, date, link, and one sentence it actually says.
Why: asks for dated, quotable, checkable sources.
Bad: make it better
Good: Rewrite this for a busy customer: max 100 words, one ask, no jargon. Then list what you cut.
Why: a reader, a length and an audit of changes.
Bad: should I do X?
Good: List the 3 strongest reasons for and against X for someone in [situation]. Mark which reasons depend on facts I should check.
Why: balanced, and separates facts from judgement.
Privacy and safety
Threads keep context for follow-ups; your Library keeps past threads (App Store listing). Perplexity's help pages blocked our checker, so other menu names are unconfirmed.
- Don't paste passwords, ID numbers, card numbers or other people's private details.
- Assume the company can read and keep your chats unless its official policy says otherwise.
- For health, money or legal decisions, confirm with a professional or an official source.
Failure modes to watch
- Citation drift: the cited page doesn't actually say what the sentence claims.
- Stale sources: an old page ranks well and gets cited as current.
- SEO-spam sources outranking official pages.
- Merged entities: two products or people with similar names blended into one answer.
When to use it vs other bots
| Use Perplexity for | Consider another bot when |
|---|---|
|
See: ChatGPT · Claude · Gemini · Copilot · comparison |
Leveled tutorials
Where these facts come from
- Perplexity on the US App Store: features and in-app purchase prices
- docs.perplexity.ai: API, keys, pricing, rate limits
Checked Oct 29, 2026. Plans change, so confirm on the official page before you pay.