FatThumb launches — describe it, generate it

What's new

FatThumb is live. Type what you want on a thumbnail, pick a model, and get back up to four 1280×720 PNG variations in under 60 seconds — ready to upload to YouTube Studio with no retouching.

• Two AI image engines — Gemini 3 Pro Image (default, free tier) and GPT Image 2 (Pro/Ultra), each tuned for vivid designed thumbnails, not stock-photo aesthetics.
• 1280×720 PNG, every time — the canonical YouTube thumbnail spec, rendered natively at the right resolution.
• Up to 4 variations per run — generate several options in one click and keep the best one; or compare them side by side in the A/B viewer.
• The Studio — a full composer with style references, supporting objects, and a background block so you can direct every layer of the image independently.
• Credit-based pricing — Free (5 thumbnails, watermark), Pro $20/mo (150/mo), Ultra $49/mo (500/mo). Credits never expire mid-cycle.