Live Alex · AI strategist
00:07:12 EN · 21 languages
Alex
Try Alex ↗3 questions · no signup

Everyone lovesyour idea.Alex has questions.

Pitch it out loud. Alex pushes back, checks the web and gives you a free GO or NO-GO.

Try Alex ↗3 questions · no signup
01 · The interviewExample: the garage pitch

Look closer at Alex.

Every dot is something you told him in fifteen minutes.

02 · The webLive search

Every dot is a page he read.

Market, competitors, prices and forums, sized against what you claimed.

03 · The buyersSynthetic focus group

Five buyers, made of real posts.

Each one is built from public posts on Reddit, Hacker News, G2 and forums, and reacts to your offer.

04 · The claimsThree models

Every key claim, checked three times.

Three models from three vendors. When they split, the report says who and why.

05 · The verdict30:00

Then he tells you. Free.

GO or NO-GO with a score, the main concerns and the next step. Twenty reports behind it.

Three on your side.

Hover a portrait to see them live

Alex runs the interview. Sam plans how to build it and what it costs. Maya turns the result into a brand. Talk to two of them, out loud.

Live voice15 min

Alex Strategist

Interviews you about the idea, pushes back on the weak spots, checks your market and competitors, and gives the GO or NO-GO.

MarketCompetitorsVerdict
Live voice

Sam Builder

Talks through how to build it: the architecture, the real costs and the timeline for your idea, not a generic one.

ArchitectureBudgetTimeline
Design studio
No call needed

Maya Designer

Works from what you told Alex and Sam: a logo, a colour palette, a brand book and a landing page you can publish.

LogoBrand bookLanding page
PricePer idea · No subscription

The verdict is free.
The whole dive is $19.99.

  1. Free$03 projects. The 15-minute interview with Alex, the verdict and the summary.Start free ↗
  2. 1 idea$19.99All 20 reports, Sam and Maya, PDF export.
  3. 3 ideas$49.99$16.66 per idea.
  4. 10 ideas$99.99$10 per idea.

One credit = one project · Paid by card · How we handle your data →

FAQTranscript

Ask Alex.The questions he hears most, and his answers.

  1. 00:17Alex

    A chat is one call: text in, text out. GoNoGo runs six research stages with live web search, checks key claims across three models from three vendors, runs a synthetic focus group, and computes the verdict from thresholds on what it found. You get 20 structured reports, not a chat log.

  2. 01:05Alex

    Three projects with me. Each gets the 15-minute voice interview and the validation summary: GO or NO-GO, validation score, interest ratio, price range and next steps. The other reports are written in the same session and stay locked until you use a credit.

  3. 02:34Alex

    It is computed, not written. Market size, growth, business model, problem clarity and audience each score against fixed thresholds, and the verdict is a threshold on the total. Key claims are checked by three models from three vendors plus web sources.

  4. 03:51Alex

    No. They are synthetic buyers built from real public posts on Reddit, Hacker News, G2 and industry forums. Each has its own pains and the sources they came from.

  5. 05:13Alex

    Your voice is streamed for processing and discarded: no audio files or recordings are kept. Projects are stored in Google Cloud, never used to train AI models, and you can delete them at any time.

Free · No signup · Updated weekly

The validation library

Everything we know about checking an idea before you build it: 94 guides, templates, tools and articles.

Guide · 7 min Pick a book

Hover a spine to read what it covers. Click to open it.

18Validation
Is ChatGPT Enough to Validate an Idea?Can AI Validate a Startup Idea?Is My Business Idea Good?A Validation Prompt That Argues BackFree Startup Idea ValidatorHow to Validate a Business IdeaValidate Before You Build (2026)Idea Validation Examples: 6 Cases (2026)Startup Validation Checklist: 27 Items (2026)Lean Validation Methodology Explained (2026)The Validation Tools ComparedRoast My Website — Free AI AuditWebsite Audit: What 8 Tools Actually CheckLean Canvas: A Founder's GuideLean Canvas Examples: 4 Filled In (2026)Lean Canvas for SaaS: Worked Example (2026)Lean Canvas Template (Free, 2026)Lean Canvas vs Business Model Canvas (2026)
36Customer Research
Synthetic Users: How to Check the FindingsSynthetic Focus GroupsA Validation Survey That Can Prove You WrongThe Mom Test: A Founder's Practical GuideThe Mom Test Cheatsheet (2026)Mom Test Examples: Good vs Bad (2026)Mom Test Questions: 27 to Steal (2026)The Mom Test Summary: Book TLDR (2026)Customer Discovery: The Founder's GuideCustomer Discovery Process: 5 Steps (2026)Customer Discovery Questions: 25 (2026)Steve Blank Customer Discovery Method (2026)Customer Discovery Template (Free, 2026)Opportunity Solution Tree, CheckedValue Proposition Canvas Fit CheckEmpathy Map: Heard or ImaginedCustomer Interview Playbook: 30 QuestionsCustomer Interview Questions: 30 (2026)Recruiting Customers for Interviews (2026)Customer Interview Script (2026)Customer Interview Template (Free, 2026)Voice of Customer: A Practical GuideVoice of Customer Methodology (2026)VoC Program Setup: 90-Day Roadmap (2026)Voice of Customer Survey Questions (2026)Voice of Customer Template (Free, 2026)Jobs to Be Done (JTBD) FrameworkJTBD Examples: 6 Real Job Statements (2026)JTBD Interview Questions: Switch Format (2026)JTBD for SaaS: Applied Framework (2026)JTBD Template: Job Statement (Free, 2026)User Interview: A Methodology GuideUser Interview Best Practices: 12 Rules (2026)User Interview Questions: 30 to Steal (2026)User Interview Script: Word-for-Word (2026)User Interview Template (Free, 2026)
14Market Research
AI Focus Groups: What They Can DecideTAM, SAM, SOM: Market Sizing ExplainedTAM SAM SOM Calculator (Free, 2026)TAM SAM SOM Examples: 6 Calculations (2026)TAM SAM SOM for SaaS: A Founder's Guide (2026)TAM SAM SOM Template (Free Sheets/Excel, 2026)Van Westendorp Price Sensitivity MeterGabor-Granger Pricing MethodKano Model Feature PrioritizationWillingness to Pay: What Counts as ProofValue-Based Pricing and Economic ValuePrice Laddering: Good, Better, BestPrice Elasticity of DemandPorter’s Five Forces Analysis
8Decision Frameworks
Go/No-Go Decision FrameworkGo/No-Go Criteria Checklist: 7 Weighted (2026)Go/No-Go Decision Examples: 3 Cases (2026)Go/No-Go Meeting: Agenda, Roles, PacingGo/No-Go Decision Template + Scorecard (2026)RICE Prioritization FrameworkMoSCoW Prioritization MethodNorth Star Metric and How to Test It
18Blog
Startup Idea Validation Tools in 2026 — What Each One Actually DoesI Killed Two Forms. Here's What Replaced ItHow we calibrated a Synthetic Focus Group from 'this looks great!' to 89% behavioral fidelityWe Were Building Marketing for a Startup. We Accidentally Built an A³I Built a Voice AI with Sub-500ms Latency. Here's the Echo Cancellation Problem Nobody Talks AboutCross-Model Verification: How We Fact-Check Every NumberHow Voice Validation Works (And Why It Beats Forms)Synthetic Focus Groups: How AI Personas Predict Real User BehaviorWe Roasted 100+ Websites with AI. Here's What We Found.How to Validate a Startup Idea Before Writing CodeMeet Alex, Maya & Sam — Your AI Consulting TeamHow we protect your startup ideaReality Check, Synthetic A/B and AI Digest: What Happens After the VerdictFocus Groups vs Surveys vs AI — Which Validation Method Is Right for You?20 Reports From One Voice Session — What You Actually GetWhy 42% of Startups Fail — And How to Not Be One of ThemThe Best AI Tools for Startup Founders in 2026Market Sizing for Startups: TAM, SAM, SOM Explained With Real Examples