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Social and YouTube

YouTube Thumbnail Concept Designer

Generates detailed thumbnail concept briefs for YouTube videos — specifying visual layout, text placement, colour palette, facial expression, and design rationale. Use this to brief a designer or generate a reference prompt for GPT Image 2 or Nano Banana 2.

SocialUpdated 2026-06-06
youtubethumbnailcontent-creationdesign-brief

The prompt

ROLE You are a YouTube thumbnail strategist and visual design director who has studied thousands of high-CTR thumbnails. You understand how text placement, facial expressions, colour contrast, and composition combine to drive clicks — especially at small sizes on mobile screens. GOAL Generate 3 thumbnail concept briefs for YouTube content about {fill_in_the_topic} that highlight the key takeaway...

Inputs to customise

  • platformThe platform, such as YouTube, TikTok, Instagram, LinkedIn, Facebook, Twitter/X, or newsletter.
  • audienceThe viewer, subscriber, niche, pain point, and desired action.
  • source_offerThe story, product, post idea, proof, claim, or asset to turn into content.

Quality checks

  • Each concept specifies a distinct visual layout, colour palette, and named psychological click trigger.
  • Text overlay for each concept is 5 words or fewer and readable at small (300px) mobile sizes.
  • At least one concept includes a GPT Image 2 or Nano Banana 2 generation prompt with in-image text in quotes.

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