Vincent, founder of Preuve AI

Vincent Forat

Founder of Preuve AI

I spent 5 years in B2B growth - first as Growth Marketer at Bluesquare.io in Paris, helping startups and enterprises build digital products, then as an independent growth consultant working with B2B companies on RevOps, CRM (HubSpot, Pipedrive, Salesforce), marketing automation, and lead generation.

The pattern was always the same: the founders who validated hard and early survived. The ones who skipped it built beautiful products for markets that didn't exist. I watched too many founders burn months on ideas nobody wanted.

According to CB Insights, 42% of startups fail because there's no market need. That's the blind spot I built Preuve AI to catch - the tool I wish existed when I was advising startups on go-to-market.

Preuve AI is an agentic RAG pipeline - not a ChatGPT wrapper. Autonomous AI agents search the live web in parallel, retrieving real data from 40+ sources. Every claim links back to where it was found. I've analyzed 4,000+ startup ideas across 13 industries since launch. Only 18.3% earned a go verdict at 70 or above, the threshold I consider launch-ready.

4,000+

ideas analyzed

43

articles published

40+

live data sources

Background

Founder

Preuve AI

2025 - present

Built an agentic RAG pipeline for startup validation. 4,000+ ideas analyzed across 13 industries, 40+ live data sources.

Growth Marketing Consultant

Freelance - Paris

2023 - 2025

Advised B2B companies on growth strategy and execution: RevOps, CRM implementation, marketing automation, outbound campaigns, and lead generation.

Growth Marketer

Bluesquare.io - Paris

2021 - 2023

Built the growth engine for a digital product studio helping startups, mid-market, and enterprise clients. AARRR funnel optimization, marketing automation, B2B outbound, and cross-channel analytics.

Expertise

Startup ValidationB2B GrowthRevOpsCRM (HubSpot, Pipedrive, Salesforce)Marketing AutomationMarket ResearchCompetitive AnalysisLead GenerationSaaS MarketingGo-to-Market StrategyAI/RAG PipelinesUnit EconomicsOutbound Prospecting

All articles (43)

AI Business Context Validation: How It Works (and When It Doesn't)

Apr 15, 2026-8 min

Market Validation: How to Prove Demand Before You Build

Apr 8, 2026-14 min

Startup Pitch Deck: What Actually Gets Funded in 2026

Apr 5, 2026-11 min

Startup Validation Benchmarks 2026: What 4,000+ Startup Ideas Reveal

Apr 4, 2026-8 min

How to Validate a Product Idea Before You Build

Apr 3, 2026-10 min

ValidateIdea Alternative: When to Switch to Preuve AI

Apr 3, 2026-6 min

IdeaKiller Alternative: When Preuve AI Is the Better Upgrade

Apr 3, 2026-6 min

VenturusAI Alternative: Choose Evidence Over Frameworks

Apr 3, 2026-6 min

The AI Wrapper Debate Is Over. Agent-Washing Is the New Problem.

Apr 1, 2026-9 min

Preuve AI vs IdeaBuddy: Validation vs Business Planning

Apr 1, 2026-6 min

Confirmation Bias in Startup Validation (5 Traps)

Mar 17, 2026-10 min

Why 42% of Startups Fail (And What the Other 58% Get Wrong Too)

Mar 17, 2026-8 min

50 Startup Ideas for 2026 (Rated by Real Data)

Mar 17, 2026-22 min

How to Validate a Business Idea Before You Build

Mar 7, 2026-9 min

How 10 AI Agents Validate Your Startup Idea (Deep Analysis Explained)

Mar 5, 2026-8 min

Preuve AI vs IdeaKiller: Quick Verdict or Real Validation?

Mar 5, 2026-6 min

Preuve AI vs VenturusAI: Frameworks vs Market Evidence

Mar 5, 2026-5 min

Preuve AI vs ValidateIdea: Fast Report or Real Validation?

Mar 5, 2026-6 min

Best Startup Idea Validator Alternatives (and How to Pick One)

Mar 5, 2026-8 min

Preuve AI Review (2026): Real Feedback, Pricing, Pros and Cons

Feb 22, 2026-6 min

Preuve AI for Teams Review (2026): Agency Lead Qualification Tool

Feb 22, 2026-7 min

How to Pre-Qualify Startup Leads Before a Discovery Call

Feb 22, 2026-7 min

White Label Audit Tool for Business Validation 2026

Feb 15, 2026-6 min

How to Find Every Competitor in Your Market (6 Free Ways)

Feb 8, 2026-5 min

We Tested 1,000 Startup Ideas. Only 11% Survived.

Feb 8, 2026-7 min

Preuve AI vs DimeADozen AI (2026): Full Comparison

Feb 8, 2026-6 min

Preuve AI vs ChatGPT for Startup Validation (2026)

Feb 3, 2026-6 min

8 Best Startup Validation Tools (2026)

Feb 2, 2026-8 min

How to Research Your Pitch Deck (Data Investors Actually Want)

Jan 30, 2026-7 min

Preuve AI vs IdeaProof (2026): Full Comparison

Jan 30, 2026-5 min

Preuve AI vs ValidatorAI (2026): Full Comparison

Jan 30, 2026-4 min

How to Validate Client Ideas (For Agencies & Consultants)

Jan 28, 2026-5 min

Competitor Analysis for Startups: What Actually Matters 2026

Jan 28, 2026-6 min

Startup Market Size Calculator: TAM, SAM, SOM (Free)

Jan 20, 2026-11 min

Is My Startup Idea Good? 7 Signs You Have a Winner

Jan 19, 2026-8 min

How to Validate a SaaS Idea Before You Build (7 Steps)

Jan 18, 2026-12 min

MRR Reality Check: What SaaS Actually Makes in Year 1

Jan 16, 2026-9 min

How to Qualify Startup Leads (For Agencies & Accelerators)

Jan 15, 2026-5 min

What to Do When Your Idea Gets a Low Validation Score

Jan 14, 2026-7 min

How to Build the Market Slide VCs Can't Ignore

Jan 12, 2026-10 min

TAM SAM SOM: The Market Sizing Guide Investors Actually Trust

Jan 10, 2026-15 min

How to Validate Your Vibe-Coded Idea Before Scaling

Jan 8, 2026-8 min

How to Validate Your Startup Idea (Without Writing Code)

Jan 1, 2026-12 min