AI prompt research, built on real buyer questions

Proofsource's AI prompt research tool finds the questions buyers ask AI engines about your category, writes them the way buyers type, ranks them in a question map and keeps your tracked set full. It is for marketers and agencies who need to know which prompts on up to 10 AI engines, from ChatGPT and Perplexity to Gemini, Copilot and Grok, decide whether a brand gets recommended.

Suggested buyer questions for Driffle, ready to add to tracking.

AI prompt research, in short

The facts, ready to quote.

What it finds
Buyer questions about your category, suggested and ranked
Engines
Up to 10: ChatGPT, Perplexity, Claude, Google AI Overviews, Google AI Mode, Gemini, Microsoft Copilot, Grok, DeepSeek and Meta AI
Question style
Short, plain, one need each, like a real buyer types
Ranking
Every question gets a rank in a question map
Plan room
New questions fill spare room; pick more than your plan tracks and Proofsource asks which to keep
One rule
Run now and the scheduled sweep pick prompts the same way

AI prompt research, explained

AI prompt research is the work of finding the questions people type into AI assistants when they are choosing a product, then deciding which of those questions to track. It is the AI search version of keyword research. A keyword list tells you what people type into Google; a prompt list tells you what people ask ChatGPT or Perplexity, usually as a full question such as "best meeting notes app for remote teams".

The hard part is not writing questions, it is writing the right ones. Model-written prompts drift into long, stuffed sentences that no buyer would type, and they often name your brand, which makes your visibility look higher than it is. Good prompt research keeps questions short and plain, keeps buyer questions apart from brand questions, and ranks them so you track the few that move revenue first.

Proofsource suggests buyer questions for your category, checks each one against a style guard so it reads like a real buyer, ranks them in a question map and tracks the ones you pick on every run across the engines your plan covers. When your plan pays for more questions than you have, it queues new ones for you. When you pick more than your plan tracks, it tells you and helps you keep the top ones.

How it works

Find the buyer questions people ask up to 10 AI engines, from ChatGPT and Perplexity to Gemini, Copilot and Grok, ranked, and track the ones that matter.

  1. Read your brand and category

    Proofsource reads your site and works out what you sell and who buys it.

  2. Suggest buyer questions

    It drafts questions buyers ask AI about your category, each short and about one need.

  3. Rank them in a question map

    Each question gets a rank, so the ones that matter most sit at the top.

  4. Pick what to track

    Add suggestions in one click. If you pick more than your plan tracks, you choose which to keep.

  5. Track every run, keep it full

    Tracked questions run on every engine each pass, and new ones are queued when your plan has room.

See it in the product

Screens from the Proofsource app, drawn with sample data for an example brand.

Ranked questions with whether Driffle was named.

Every capability, live today

6 shipped capabilities behind AI prompt research, each in the product now.

Question suggestions

Proofsource suggests buyer questions for your category and adds the ones you pick to tracking in one click. A running list stays open so you can add more whenever you want to widen what you track.

Ranked question map

Every question has a rank in the map, so the questions that matter most are reviewed first.

Question style guard

Written questions stay short, plain and about one need each, the way real buyers type them into AI.

Question top-up

When your plan pays for more questions than you track, new buyer questions are queued so no paid room sits empty.

Plan limit check

If you select more questions than your plan tracks, Proofsource says so and helps you keep the top ones.

One rule for which prompts run

Run now and the scheduled sweep choose the same prompts by the same rule, so numbers never depend on how a run started.

Who it is for

Head of marketing

Know which AI questions matter

See the ranked buyer questions in your category and track the ones closest to a purchase.

Agency strategist

Build a client prompt set fast

Start each client from suggested questions instead of a blank sheet, then trim to the plan.

Content lead

Plan pages from real questions

Use tracked questions where you are not named as the brief for your next pages.

Founder

Set up in minutes

Accept the suggested set and let top-up keep it full as your plan grows.

Why it matters

Questions buyers really ask

The style guard keeps prompts short and plain, so answers reflect what a buyer sees.

Most important first

A ranked map means effort goes to questions that drive choices.

No paid room wasted

Top-up fills unused question slots your plan already pays for.

Consistent numbers

One selection rule for every run keeps week-to-week numbers comparable.

ChatGPTPerplexityClaudeGoogle AI OverviewsGoogle AI ModeGeminiMicrosoft CopilotGrokDeepSeekMeta AI

AI prompt research: Proofsource and other tools

Several AI visibility tools help you find prompts to track. Here is how they describe it on their own pages.

From each company's own public pages, read Nov 2, 2026. “Not listed” means we did not find it on their public pages; it may exist. Corrections: hello@proofsource.co.
CapabilityProofsourceSemrushOtterly.AIPeec AIAhrefsScrunchSE Ranking
Suggested promptsYesSuggested buyer questions per category, added in one clickYesPrompt Research shows related prompts for a topicSourceYesFree prompt research tool among its GEO toolsSourceYesSuggested prompts with search volumesSourceYesSuggests prompts from competitor comparisons and other signalsSourceYesPrompts generated automatically or importedSourceYesSuggested prompts by topicSource
Ready-made prompt libraryYesSuggestions drafted for your own category and brandYesPrompt Database of real prompts powers researchSourceNot listedNot listedNot listedYesReady-made industry prompts by planSourceNot listed
Question style kept to how buyers typeYesStyle guard: short, plain, one need per questionNot listedNot listedNot listedNot listedNot listedNot listed
Prompt prioritizationYesRanked question mapRelatedPrompt Research shows AI topic volume, difficulty and intentSourceNot listedNot listedNot listedNot listedYesPrioritize by intent and funnel stageSource
Automatic top-up of open prompt slotsYesNew questions queued when the plan has roomNot listedNot listedRelatedPrompt discovery spreads new prompts across tracking setupSourceNot listedNot listedNot listed
Research from a keyword, brand or linkYesSuggestions drafted for your category from your own siteYesTopic search showing related prompts, AI topic volume, difficulty, intent, brands and source domainsSourceYesFinds prompts from keyword, brand name or URLSourceNot listedNot listedNot listedNot listed

Where each of them shines

Semrush

A large prompt database with topic volume, difficulty and intent, next to a full SEO suite. Compare in full

Otterly.AI

Prompt research from a keyword, brand or URL, plus free GEO tools anyone can try. Compare in full

Peec AI

Suggested prompts that come with search volumes, and a self-serve prompt builder. Compare in full

Ahrefs

Prompt suggestions drawn from competitor comparisons and pricing data, beside Ahrefs' keyword data. Compare in full

Scrunch

Large ready-made industry prompt libraries and a bulk Prompt Manager. Compare in full

SE Ranking

Prompts organized into topics and prioritized by intent and funnel stage.

Questions about AI prompt research

What is an AI prompt research tool?

It finds the questions people ask AI assistants when choosing a product and helps you decide which to track. Proofsource suggests buyer questions for your category, ranks them and tracks the ones you pick across up to 10 AI engines, from ChatGPT and Perplexity to Gemini, Copilot and Grok.

Where do the suggested questions come from?

Proofsource reads your brand and category and drafts the questions a buyer would ask. Each one passes a style guard that keeps it short, plain and about one need, so it reads like a real buyer typed it.

Does it work with every AI engine my plan covers?

Yes. Every tracked question runs on every engine your plan covers, and you see a result per engine in the question map.

What happens if I pick more questions than my plan tracks?

Proofsource shows a warning with the number you picked and your plan's limit, and lets you keep the top ones or change plan. Nothing is silently dropped.

What is question top-up?

If your plan pays for more questions than you currently track, Proofsource queues new buyer questions to fill the room, so you always use what you pay for.

Why are the questions so short?

Because real buyers type short questions. Long, stuffed prompts get different answers than buyers see, so they give you a misleading picture of your visibility.

How is this different from Semrush or Ahrefs prompt research?

Semrush and Ahrefs bring large keyword and prompt datasets, which is a real strength. Proofsource focuses on writing a tight, buyer-style question set for your own category, ranking it, and keeping it tracked and full on every run.

Can I add my own questions?

Yes. You can add your own questions next to the suggested ones, and both run the same way on every engine.

Try it on your own brand.

Proofsource is live: scan your brand and see AI prompt research at work with your own answers, competitors and sources.

100 answers. 25 Prompts/Question. Top AI engines. Free.ChatGPTPerplexityClaudeGoogle AI OverviewsGoogle AI ModeGeminiMicrosoft CopilotGrokDeepSeekMeta AI