Upload two thumbnails and get AI-powered analysis comparing readability, color, composition, and click-through potential.
Thumbnail A
Upload Thumbnail A
Max 100MB per file • image/*
Thumbnail B
Upload Thumbnail B
Max 100MB per file • image/*
Upload your first thumbnail option.
Upload your second thumbnail option.
Click Analyze to run AI vision analysis on both thumbnails.
See scores for readability, color, text-to-image ratio, and click-through potential. The AI picks a winner with reasoning.
It uses GPT-4.1 vision to evaluate readability, color contrast, text-to-image ratio, and composition — key factors in click-through rate.
The AI provides informed suggestions based on known best practices. Final performance depends on many factors including audience and topic.
JPEG, PNG, and WebP thumbnails are supported.
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