A
Cursor logoCursorGenerate and test thumbnail and title variants fast

Thumbnail and Title A/B Lab That Beats Your CTR

setuproll@setuproll
86.0Overall score

A focused setup for the single biggest lever on a video, the click. It generates a batch of thumbnail concepts and matching title angles, then helps you run a real A/B test so the winner is data, not a guess.

86.0Score
1.9kVotes
4Components

Install this build

Export
terminal
npx setuproll init thumbnail-ab-lab

Components

Model

  • GPT-5 (concept + title brainstorming)
  • Gemini 2.5 Pro (CTR critique)

Stack

  • ComfyUI (thumbnail rendering)
  • Photoshop (final polish)

Tools

  • vidIQ (title scoring)
  • YouTube Test & Compare
  • TubeBuddy (A/B history)

How it works

  • Brief GPT-5 with the video premise and audience, then ask for six distinct thumbnail concepts and ten title angles
  • Render the concepts in a ComfyUI graph with consistent face and brand styling, then finish the strongest in Photoshop
  • Run them through Gemini 2.5 Pro and vidIQ for a CTR critique pass and tighten the text overlay
  • Load three finalists into YouTube Test & Compare and let the platform pick the click winner
  • Log results in TubeBuddy so each new video starts from what already worked

Summary

A focused setup for the single biggest lever on a video, the click. It generates a batch of thumbnail concepts and matching title angles, then helps you run a real A/B test so the winner is data, not a guess.

86.0 score 1.9k votes

0 Reviews

Your rating
Sign in to post

Loading discussion...

← All builds