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yt-thumbnail

Target Audience: YouTube creators, content marketers, and social media managers who need high-performing thumbnails without design skills or tools like Photoshop.

  • Area: Marketing
  • Category: images
  • Level: advanced
  • Input: conversation
  • Output: document
  • Setup: install
  • Roles: Head of Marketing, Content Manager

Generates high-CTR YouTube thumbnails using AI image generation and automated text/face compositing.

How you ask

  • “Generate a YouTube thumbnail for my video: How I Made $10K in 30 Days”
  • “Create 5 thumbnail variants for A/B testing — title is 'Python Tips Nobody Tells You'”
  • “Iterate on this thumbnail — make the text bigger and switch to the fire palette”
  • “Make a thumbnail with my face photo for 'The Truth About AI in 2026'”
  • “Remove the background from my profile photo for thumbnails”
  • “Generate dramatic facial expressions from my headshot — amazed, excited, serious”
  • “Create a gallery of all the expression variants so I can share it”

Inputs

  • title — Video title or topic for the thumbnail
  • face_image — Face/person photo for compositing (PNG preferred, transparency ideal)
  • style_direction — Visual direction — mood, colors, scene description
  • existing_thumbnail — Path to thumbnail to improve
  • feedback — What to change — text, colors, layout, background
  • title — Video title
  • face_image — Face photo for compositing
  • face_image — Face photo (JPG or PNG) — any background
  • face_image — Reference face photo (transparent PNG preferred)
  • expressions — Comma-separated list of expressions to generate (default: amazed,excited,curious,serious,pointing)
  • images — Glob pattern or comma-separated paths to images
  • labels — Comma-separated labels for each image

Outputs

  • cutout (png)
  • expression_set (png)
  • gallery_image (png)
  • prefer a permanent directory)
  • revised_thumbnail (png)
  • thumbnail (png)
  • variant_set (png)
  • {asset_dir}/
  • {asset_dir}/{name}-nobg.png