How-to · Research · Perplexity · Oct 6, 2026
Write a sourced vendor brief you can date-stamp
“Sourced brief” means every material claim has a citation you can open — not a memo built on impressions. You leave with a date-stamped note stakeholders can challenge, and Unknown where the web does not say.
Who this is for
Ops, finance, and small-team leads researching a vendor (security questionnaire prep, public pricing pages, feature claims) who need named sources. If the truth lives only in a private contract PDF, use a project or file chat in Claude or ChatGPT with those files — Perplexity’s strength is cited web research (see Claude vs Perplexity for research).
How to do it
This page is a how-to. It is not a ranking of research AI products. Product detail and dated pricing live on the reviews linked below.
1. Step 1 — One question and a must-cite rule
What it is: Write one research question and a hard rule: no citation → not a fact.
- Example question: “What does Vendor X publicly say about SSO, data residency, and list pricing as of October 2026?”
- Ask Perplexity, using the research modes your plan allows (details on Perplexity).
- Open the cited links. Discard claims whose sources are dead or do not actually support the sentence.
- Prefer primary sources (vendor docs, pricing pages, help centers, regulatory filings) over random blogs.
The question is locked. The answer cites Vendor X’s security page and pricing page. A third claim about a new SOC 2 report cites a blog, so the lead drops it until the vendor’s trust center confirms.
Paste your question with: “Cite primary sources. If unknown, say Unknown.” Save the answer and the citation list before you edit the wording.
2. Step 2 — Separate facts from unknowns
What it is: Rewrite the draft into two sections before anyone else sees it.
- Facts (cited): claim + link + retrieval date.
- Unknowns: items the sources do not settle (negotiated price, unpublished roadmap, private contract terms).
- Never fill unknowns with model guesses to make the brief look complete.
- If you use Perplexity Pages for a shareable briefing, keep the same Facts / Unknowns structure — and note that page creation availability can change (see the Perplexity Pages review).
Fact: the vendor’s public list price, cited from its own pricing page and checked Oct 6, 2026. Unknown: whether your renewal gets the same discount as last year. The brief shows both lines.
Format the brief as three headings — Facts (cited), Unknowns, and Date stamped: 2026-10-06 — and delete any sentence that fits in neither section.
Pricing context (October 2026)
This how-to is not a price sheet. Plan detail for Perplexity and Perplexity Pages lives on those reviews. Recheck each vendor’s site before you budget. Dated October 2026.
Price check, Oct 6, 2026: We could not load Perplexity’s own pricing page on Oct 6, 2026, so this page does not state a Perplexity price. Pricing changes — check perplexity.ai/pro and the Perplexity review before you budget.
Uncertainty: Pro packaging, research modes, and Pages availability change. If an invoice and a review disagree, trust the invoice. Do not paste a marketing list price you did not pay. The only prices this site sells here are the optional $9 AI toolkit spreadsheet and $19 AI toolkit audit.
When this helps (honest take)
Useful when you need cited web research you can date-stamp, and stakeholders accept unknowns.
Not useful when the answers live only in private files, or you want a pick-a-winner verdict without reading sources. For research on internal files see Claude Projects or ChatGPT with uploads — compared on Claude vs Perplexity for research.
Related options (educational)
| Need | Where to look | Why |
|---|---|---|
| Cited web answers | Perplexity | Primary research path |
| Shareable sourced briefing page | Perplexity Pages | Companion feature review |
| Internal PDFs and projects | Claude Projects · Claude vs Perplexity for research | When the documents are private |
| General ops chat | ChatGPT for ops · Claude for ops | A different job than sourced briefs |
Related reviews: Perplexity · Perplexity Pages · Claude vs Perplexity for research.
FAQ
What if Perplexity sounds confident without a usable citation?
Mark it Unknown. Do not ship the sentence.
Should the brief rank vendors?
No. This is educational research with citations — humans decide.
Pages or a plain Perplexity thread?
Use Pages when you want a shareable briefing and page creation is available on your account; otherwise a dated doc with Facts and Unknowns is enough. See Perplexity Pages.
Where do dated prices live?
On the linked reviews and Perplexity’s site. We could not verify a Perplexity price from its own site on Oct 6, 2026, so none is stated here — for vendors you research or for Perplexity itself.
Optional next step
Free reviews stay free. Neither offer is required to use this page. Optional help when research and chat seats overlap: $9 AI toolkit spreadsheet or $19 AI toolkit audit.