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Scenario

YouTube thumbnails drive 80%+ of click decisions, but you can’t A/B test them natively. This job pulls your video thumbnails (and optionally competitor thumbnails) via videos.list, extracts the thumbnail URLs, then runs a Focus Group where personas evaluate each thumbnail with the core question: “Which would you click? Rate 1-10.” The result is a click-prediction scorecard with specific visual feedback from each persona — before you commit to a thumbnail.

Architecture

Code

Example Output

Error Handling

Not all videos have maxres thumbnails (1280×720). The code falls back to high (480×360) then medium (320×180). Custom thumbnails require the channel owner to verify their account.
Mavera Focus Groups analyze thumbnail descriptions and URLs contextually. For pixel-level visual analysis, upload thumbnails as image assets via POST /assets first and reference the asset IDs.
This entire job uses 1 quota unit (videos.list with up to 50 IDs per call). The most quota-efficient job alongside trending analysis.

YouTube Integration

Focus Groups API