Pick the winning image before you pay to find out.
Amazon's split tests need weeks of high traffic and show half your shoppers the losing variant the whole time. Drop two versions into SynthX AI and a category-true buyer panel picks the winner on purchase intent — in minutes, with the reason and the segment split.
What this costs you today
Native A/B testing taxes you just to learn
It's slow
Weeks to a result while the trend you're chasing — and your launch window — moves on.
It's traffic-hungry
Low-volume ASINs never reach significance, so you never get an answer at all.
It costs you sales
Every impression on the losing variant is margin left on the table during the test.
Polls ask the wrong people
General polling tools ask strangers who will never buy in your category — not your actual shopper.
Test as many variants as you want — in an afternoon
- Drop in variant A vs B — main image, title, or more — no live listing required.
- A category-true buyer panel picks the winner on purchase intent, with its reasoning.
- See which buyer segment prefers which — not just a blended average.
- Ship the winner today and iterate again tomorrow, as many rounds as you want.
Not a claim — here's how SynthX proves it
Every promise above is backed by the same engine and the same report you can open right now.
Judged on buying, not popularity
The panel scores each variant on purchase intent — the modeled likelihood a category-true buyer clicks — rather than a raw vote.
You get the why, not just the winner
Every result names the deciding factor among the buyer-psychology signals and returns the reasoning behind each variant's score.
No winner averaged away
Preference is broken out by buyer segment — skeptics, switchers, loyalists — so a variant that wins the segment that matters isn't hidden in the blend.
Comparative to your real shelf
The panel is category-true and scores against your auto-fetched rivals, so the verdict reflects the listings you actually compete with.
Everything you get back
Every run returns a scored, evidence-backed teardown — not a checklist.
Head-to-head Win Probability
A clear winner scored on how likely each variant is to take the click.
Per-variant reasoning
The specific reason buyers preferred one over the other — not just a vote count.
Segment-level preference
Where skeptics, switchers and loyalists split, so you don't average away a winner.
The deciding factor, named
The one signal — trust, clarity, value — that tipped the decision.
From ASIN to answer in minutes
Add your variants
Upload the versions you're deciding between — image, title, or both.
Panel votes with reasons
A category-true buyer panel picks on purchase intent and explains why.
Read the segment split
See which buyer type prefers which variant.
Ship the winner
Go live with the version that wins — today.
Built for the teams on the hook for the number
Growth & CRO teams
Iterate on creative without waiting weeks for significance.
- Get a decision in minutes, not months
- Test low-traffic ASINs native tests can't
- Never show shoppers the losing variant
Creative & design
Settle which image wins before it ever goes live.
- Compare concepts on purchase intent
- Learn the why behind the winner
- Run unlimited rounds at no per-test cost
Agencies managing many SKUs
Make confident creative calls across the whole catalog.
- Batch decisions without eligibility gates
- Back recommendations with segment data
- Move faster than native experiments allow
Questions, answered
How is this faster than Amazon's split testing?
Native experiments need weeks of live traffic to reach significance. SynthX asks a category-true buyer panel and returns a scored winner in minutes — no live listing, no waiting.
Do I need Brand Registry or a live listing?
No. You can compare variants before anything is live and without eligibility gates — upload the versions and run the panel.
How is this different from PickFu?
Polling tools ask a general audience one question at a time. SynthX runs a category-true panel that judges on purchase intent, gives you the segment split, and costs nothing per additional round.
What can I test?
Main image, title, or full-variant concepts — as many rounds as you want, with reasoning on every result.