Thumbnail Split Tester
A/B test two thumbnail concepts and get AI predictions on which will perform better.
Upload 2–3 thumbnails
0 selectedPNG, JPG, WebP — up to 5MB each, 1280×720 recommended
Upload at least 2 thumbnails to compare
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Scoring variants…
Usually takes 20–60 seconds — variants are scored one at a time
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Variant Comparison
0 variantsCTR → Views Projection
Projections extrapolate each variant's design-quality CTR estimate across the impressions you enter — not a guarantee of real performance. Actual results depend on title pairing, audience match, channel authority, and algorithmic distribution.
Split-Test Guidance
—Test validity — —
Recommended next step — —
Mobile Feed Simulation
Rendered at actual mobile-feed scale (~120×68px) — how each variant competes for attention next to other videos.
Deep Dive
Detected niche: —
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Category Breakdown
0 categoriesMobile Legibility
Policy Risk Flags
Estimated CTR Band
vs. typical niche thumbnails: —
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Improvement Suggestions
0 itemsUpload 2-3 Thumbnails
Drop in the candidate thumbnails you're deciding between, plus an optional title/niche for extra context.
AI Scores Each Variant
Every image gets an independent quality score, category breakdown, CTR band estimate, and improvement suggestions.
Head-To-Head Verdict
A second pass compares all variants side by side and picks the one most likely to win on click-through rate.
Ship With Confidence
Use the winner, or feed the suggestions back into your design before publishing.
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