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Creative Wind Tunnel

AI-powered creative testing platform — validate ad creatives against synthetic personas before launch

Next.jsFastAPILLM IntegrationTailwind CSSPythonAI Scoring Engine
Creative Wind Tunnel

Overview

Creative Wind Tunnel is a SaaS platform that lets marketing teams test ad creatives through an AI-powered simulation layer before committing ad spend. Like a wind tunnel for aircraft — where engineers stress-test designs before flight — this platform stress-tests creative concepts against realistic synthetic personas, predicting performance across channels like Instagram, YouTube, TikTok, LinkedIn, and Facebook. The result: fewer wasted campaigns, faster iteration, and data-driven creative decisions.

The Challenge

Marketing teams routinely launch ad creatives based on gut feeling or internal approval — then discover poor performance only after spending significant budget. A/B testing in production is slow and expensive. Teams needed a way to predict creative performance before launch: scoring emotional resonance, clarity, CTA strength, brand fit, and channel suitability against specific audience segments — without running a single live ad.

How We Solved It

1

Synthetic Persona Engine

Users build detailed audience personas — age range, income, life stage, decision style, platform preferences, peak activity times — or import from a prebuilt library. Each persona scores creatives across seven dimensions: Clarity, Relevance, Distinctiveness, Brand Fit, Emotion, CTA strength, and Inclusivity.

2

Pretest — Quick Creative Validation

Upload a creative (image, video, or copy), select a persona, choose target channels, and run a pretest. The AI engine scores the creative against the persona's psychological profile and channel behaviour patterns, returning actionable improvement suggestions in seconds.

3

A/B Simulation — Predict Before You Spend

Configure two creative variants side by side — different headlines, visuals, descriptions — against the same or different personas. The simulation engine predicts which variant will outperform and by how much, giving teams a data-backed decision before any live traffic is allocated.

4

Live Testing — AI Creative Consultant

An LLM-powered interface lets teams ask open-ended questions about their uploaded creatives: 'What does my video communicate to a tech-savvy professional?' or 'How would a millennial respond to this headline?' — getting nuanced, context-aware guidance instantly.

5

Project & Plan Management

Projects are organized with objectives (awareness, conversion), KPIs (engagement, CTR), market maturity, channels, and KPI targets. A five-tier SaaS subscription model (Free → Starter → Professional → Agency → Enterprise) gates features from basic scoring to private LLM endpoints and white-labelled reporting.

Dashboard & Project Management

AI Creative Testing Suite

Personas & Pricing

Results & Impact

Pre-Launch Confidence

Teams validate creative concepts against realistic personas before spending a single dollar of ad budget.

Faster Iteration

Pretest results arrive in seconds — replacing weeks of production A/B cycles with instant simulation.

Multi-Channel Coverage

Instagram, YouTube, TikTok, Facebook, LinkedIn, Twitter, Pinterest, Snapchat — all in one platform.

Persona-Level Precision

Seven-dimension scoring (Clarity, Relevance, Emotion, CTA, etc.) gives granular, actionable feedback — not just a pass/fail.

Scalable SaaS Architecture

Five subscription tiers from solo freelancers to enterprise brands with custom LLM endpoints and white-label reporting.

Technical Architecture

FrontendNext.js + Tailwind CSS — clean SaaS UI with dark mode, project management, and testing flows
BackendFastAPI — REST API handling persona scoring, simulation engine, and report generation
AILLM integration — live testing Q&A, creative improvement suggestions, persona response simulation
ScoringPython AI engine — seven-dimension creative scoring calibrated to audience demographics and platform behaviour
BillingSubscription management — five-tier plan gating from Free to Enterprise with custom features

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