The basics
Where to find Perplexity’s sources
Every answer shows its sources in three places.
Roughly 17% of the Amazon rainforest has been lost over the past 50 years12, mostly to cattle ranching and farming3. Deforestation in Brazil fell in 2023 compared with the year before1.
Illustration only. The figures here are examples, not a checked answer.
- 1Inline numbers
The small numbers after a sentence show which source it came from. Several numbers mean several sources. - 2Source cards
The row of cards above or below the answer lists the pages Perplexity used, with site name and title. - 3Sources panel
Open “Sources” to see every page it read, including ones it didn't quote directly.
Step by step
How to verify a Perplexity answer in 6 steps
Spot the citation numbers
Every Perplexity answer puts small numbers like [1] or [2] after a sentence. Each number points to the page that sentence was built from. A sentence with no number is the model's own wording and deserves extra care.
- Long answers can cite several sources per sentence.
- Hover or tap a number to preview the source.
Open the source behind each key claim
Click the number next to the claims you plan to use: statistics, dates, quotes, prices, medical or legal statements. You don't need to open every link, just the ones that matter.
- Use Ctrl/Cmd + click to open sources in new tabs.
- On mobile, tap the number, then “Open”.
Find the exact passage
On the source page, search for a keyword or number (Ctrl/Cmd + F). Confirm the page actually says what the answer claims, in the same context.
- Watch for numbers that were rounded, swapped or taken from a different year.
- Check the claim isn't from a comment, ad or quoted opponent.
Judge the source itself
Ask who published it, when, and why. An official agency, peer-reviewed study or established news outlet carries more weight than an anonymous blog or a seller's product page.
- Check the publish or update date.
- Look for an author, organisation and citations of its own.
Cross-check with a second source
For anything important, confirm the claim in at least one independent source. If two reliable sources agree, you can be more confident.
- Ask Perplexity: “Find a second, independent source for this.”
- Prefer the original study or data over articles about it.
Ask Perplexity to fix weak sourcing
If sources look weak, say so. Ask for official, academic or recent sources, or switch Focus to Academic. Follow-ups refine the same thread.
- “Only use government or peer-reviewed sources.”
- “Which of these claims is least supported?”
Source quality
How to judge a source
Not every citation is equally trustworthy. Use this ladder as a rough guide, from strongest to weakest.
Official data and primary researchGovernment agencies, statistics offices, peer-reviewed studies, court documents, company filings.
Established experts and newsUniversities, recognised professional bodies, major news outlets with corrections policies.
Explainers and secondary sitesEncyclopedias, reputable blogs, trade publications. Good for context; follow their links to the original.
Opinions and sellersForums, social media posts, anonymous sites, product pages, affiliate reviews and AI-generated content farms.
Watch out
Red flags in an AI answer
A specific number, date or quote with no source number next to it.
Every claim points to the same page, so you're really reading one opinion.
You open the source and can't find the claim, or it says something different.
The source is years old for a fast-changing topic like prices, laws or tech.
A product claim backed only by the company selling it, or by affiliate review sites.
A surprising, perfectly round statistic that you can't trace to any original study.
Free source checker
Open one source from your Perplexity answer, then tick everything that’s true.
Prompts
Prompts that get better sources
Copy one into Perplexity as a follow-up, or open it directly.
Answer using only government, university or peer-reviewed sources, and say if you can't find any.
For each claim in your answer, quote the exact sentence from the source that supports it.
Which statements in your last answer are weakly supported or come from a single source?
Find the original study behind this statistic, with its publication year and authors.
Give me sources published in the last 12 months only.
Show me sources that disagree with this conclusion.
FAQ
Questions about Perplexity’s sources
Are Perplexity's citations always correct?
No. Citations show where a sentence came from, but the model can occasionally misread a page, mix up two sources or cite a page that only partly supports the claim. That's why it pays to open the sources for anything important.
Why does a citation link to a page that doesn't mention the claim?
It can happen when a page changed after Perplexity read it, when content is behind a paywall or loaded later, or when the model attached the wrong number. Treat that claim as unverified until you find it elsewhere.
Can I make Perplexity use only academic sources?
Yes. Use the Academic Focus, or ask directly: “Use only peer-reviewed or university sources.” For deeper reviews, try Deep Research.
How many sources should I check?
Check every claim you plan to rely on or repeat. For high-stakes topics like health, law or money, confirm with at least two independent, reliable sources, or a professional.
Does Perplexity make things up (hallucinate)?
Less often than chatbots that answer from memory, because it writes from pages it just retrieved. But it can still be wrong, so sentences without a citation, or with a weak one, need extra care.
Can I cite Perplexity in an essay or report?
Cite the original sources Perplexity found, not Perplexity itself, and read them first. Check your school's or employer's rules on AI tools.
Keep learning
Try it
Check your next answer in under a minute
Ask a question on Perplexity, open the numbered sources, and run them through the checker above.