Updated
AI Idea Validator
Find out if your idea deserves the next six months before you spend them. Preuve AI tests it against live market evidence and returns a strict verdict you can check, source by source.
- 9,000+ideas analyzed on Preuve AI
- 60+live sources, every claim linked
AI idea validators compared
Preuve AI is our top pick for founders who want a serious answer before they commit. The Founder Report pairs Claude Opus 5.5 with source checks and a review of conflicting numbers. You get the evidence to build, pivot or walk away.
| Tool | Price | Sources | You get | The catch |
|---|---|---|---|---|
| Preuve AIOursChecked Oct 2026 |
Free scanthen a $59 one-time Founder Report
|
60+ live sources, every claim linked. Estimates are labeled as estimates. | A strict verdict on whether to build. The $59 report adds the competitors you missed (up to 15), TAM/SAM/SOM, Founder Fit and 3 Smart Pivots. It runs on Claude Opus 5.5 and checks itself for contradictions. | An evidence report, not a daily planning workspace. |
| DimeADozenChecked Sep 2026 |
Free idea scoreFull report $129 ($9 Starter, $179 for 3)
|
Web research and public filings, with citations. | Reports of 100+ pages. | No build verdict. You make the call yourself from 100+ pages. |
| IdeaProofChecked Sep 2026 |
Free tier40 credits, one validation. Paid from €19.99 in credits
|
Advertises 50+ sources. | A free tier and a published scoring methodology. | 6 sections. Used credits are non-refundable. |
| IdeaCrystalChecked Oct 2026 |
Free 1-page scan$37 one-time report
|
Search and SEO data: keyword volume, CPC, competitor traffic. | Search-demand data on your idea. | A 30 to 60 minute wait, and its sample report links none of its sources. |
| VerdiktChecked Sep 2026 |
$14.99 one-time$39.99 for 3. No free tier
|
Typically 40+ cited sources, graded by tier. | A cited memo with its scoring math shown. | You pay before you see anything. |
| ValidatorAIChecked Sep 2026 |
Freewith a Google sign-in
|
AI-generated. | A 0-100 score plus 21 single-shot tools. | Each tool answers once from a short form, with no source links. |
| IdeaBrowserChecked Oct 2026 |
$1,499 a yearOne plan
|
Curated research plus Reddit, search and trends. | 2,000+ pre-researched ideas and a daily trend feed. | An idea discovery catalog first. Testing your own idea needs the $1,499 plan. |
| ChatGPT or ClaudeChecked Oct 2026 |
Freeor about $20 a month
|
Training data, plus the web when search is on. | Answers to whatever you ask. | You design the analysis and judge the answer. No market sizing or competitor map unless you build it. |
How we checked: every fact comes from the tool's own website (its pricing page, feature pages or sample report) in the month shown. We don't rate or score other tools.
What does an AI idea validator do?
An AI idea validator is a tool that searches the web for evidence about your startup or business idea: who else sells it, at what price, how big the market is, and whether real people complain about the problem. Then it scores the idea on what it found.
The good ones show their sources. A score without sources is just an opinion.
AI idea validator vs ChatGPT
| A chatbotChatGPT, Claude, Gemini | Preuve AIOurs, built for this one decision | |
|---|---|---|
| Who designs the analysis | You write the prompts and judge the answers | A prepared assessment of demand, competitors, risks and next steps |
| The verdict | No fixed scale. You set the bar in your prompt | Six factors scored against live evidence, on a strict scale |
| Market size and competitors | Only if you build that yourself | Up to 15 competitors and TAM/SAM/SOM in the $59 Founder Report |
| Best for | Brainstorming and quick questions | Deciding to build, pivot or drop, with evidence you can check |
Before a Founder Report reaches you, Preuve AI checks its work. A market figure counts as sourced only if the cited page contains it, dead links are cut, and every section is cross-checked for numbers that contradict each other.
How to choose an AI idea validator
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Can you check every claim?
Preuve AI links its findings to their sources and labels estimates as estimates, so you know what was measured and what was assumed.
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Does it end on a decision?
Research alone leaves the call to you. Preuve AI ends on a strict verdict. Only 17.5% of ideas earn a go.
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Is the idea right for you?
Founder Fit, in the $59 Founder Report, checks it against your experience, team, audience and budget.
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Can you try it before paying?
Yes. Preuve AI's first verdict is free and takes about 60 seconds, with the main risks and 2 competitor previews.
AI idea validator FAQ
What is an AI idea validator?
A tool that researches your startup or business idea on the live web and scores it on demand, competition, market size and risk.
What is the best AI idea validator?
Preuve AI is our pick for deciding whether an idea is worth building. In about 60 seconds, its free scan gives a strict verdict, the main risks and 2 competitor previews, with links to the research behind them. The $59 Founder Report runs on Claude Opus 5.5 and adds up to 15 competitors, TAM/SAM/SOM, Founder Fit and 3 Smart Pivots. Before delivery, it checks cited market figures and looks for contradictions across the report.
Is there a free AI idea validator?
Yes. Preuve AI's free scan gives a scored verdict, the main risks and 2 competitor previews in about 60 seconds, with links to the research behind them. IdeaProof, IdeaCrystal, DimeADozen and ValidatorAI also have a free option.
How much does an AI idea validator cost?
From free to $1,499 a year. Most tools give a free score or scan, then sell a one-time report: Verdikt $14.99, IdeaCrystal $37, Preuve AI $59 and DimeADozen $129. IdeaProof sells credits from €19.99. IdeaBrowser is $1,499 a year, and a ChatGPT or Claude plan is about $20 a month.
Which AI idea validators show their sources?
Preuve AI, DimeADozen, IdeaProof and Verdikt link their findings to sources. ValidatorAI gives no source links, and IdeaCrystal's sample report links none. IdeaBrowser's research cites sources, but its verdict on your own idea does not. Preuve AI's Founder Report also tags each market figure as from a source, calculated or an assumption.
Is an AI idea validator better than ChatGPT?
For deciding whether to build, yes. ChatGPT and Claude can search and cite the web, but you design the analysis and judge the answer alone. Preuve AI runs a prepared assessment that ties the evidence to risks, competitors and next steps, and its $59 Founder Report adds Founder Fit for your experience, team and budget. Keep ChatGPT for brainstorming.
Do AI idea validators actually work?
For desk research, yes. Preuve AI finds competitors, prices and market data in minutes instead of days. No validator can tell you whether people will pay, so use the verdict to pick what to test, then talk to people who have the problem.
Can an AI idea validator replace talking to customers?
No. It tells you where to look. Talking to 10 people who have the problem is still the best test.
Find out now, not after launch
See who you are up against before you spend months building. Your first verdict is free and takes about 60 seconds: a strict score, the main risks and 2 competitor previews, with links to the research behind them.
Get my free verdict