Definition
What is a creative flow test?
A creative flow test is a pre-launch evaluation of how an ad moves a viewer through the creative flow — scroll-stop, attention, comprehension, and intent — by running each variant past a synthetic version of your real target audience before you spend a dollar on media.
Unlike a traditional A/B test, a creative flow test happens before launch, so you find the winner without burning budget to learn it. Unlike a generic “creative score,” it judges your variants against your buyer — not an average of everyone else's ads.
The Problem
AI made ads free. It made slop free too.
Generators solved volume. They never solved selection. That gap — which variant actually wins — is exactly what a creative flow test closes.
10+
AI variants generated per session
Generation is free now. Every tool fires out a dozen variants in seconds. The bottleneck moved from making ads to knowing which one is not slop.
$0
Signal on which one wins — before launch
Without a flow test, your options are run them all and burn budget, or pick the one your team likes. Neither is how a cold buyer decides.
7+ days
Minimum for a platform A/B test to settle
Native testing makes you spend first and wait. By the time it is significant, your window may already be closing. A flow test answers in minutes.
How It Works
Create, flow test, ship the winner
Step 01
Create your variants
Generate ads inside Kettio, or bring what you made in AdCreative.ai, Canva, or anywhere else. Images or video stills, no format restrictions.
Step 02
Run the flow test
Define your real buyer — age, platform, intent, skepticism, price-sensitivity. Kettio runs each variant through synthetic personas built to match and scores the whole creative flow.
Step 03
Launch only the winner
Get a ranked list with written rationales explaining why each persona stopped, paused, or scrolled past. Ship the winner. Leave the slop in the drafts folder.
Backed by Research
Not a vibe. A research-backed testing algorithm.
58%
Pairwise accuracy on purchase intent
vs. 50% random baseline, on a benchmark of 1,089 real ads
70.3%
Within-product CTR pairwise accuracy
Via Bradley-Terry panel. First time breaking 70%.
Beats GPT-4o
On an academic ad benchmark
Zero training data, open methodology
FAQ
Creative flow test questions
Get Started
Stop shipping slop. Start flow testing.
Create your variants, flow test them against your real buyer, and ship only the winner. No media spend, no signup to try it.