Jahangirhussen YouTube Thumbnail Generator
Generate click-worthy YouTube thumbnails via Arcads Nano Banana 2.
Prerequisites
.envwithARCADS_API_KEY- Reference files saved locally (NOT chat-pasted images)
- Organized folders:
face/ ← 5+ angles of subject's face logos/ ← brand logo files products/ ← product images examples/ ← example thumbnails for style ref
Cost
- Single generation: 24 credits
- Batch of 6: ~144 credits
- Always present as estimates
5 Proven CTR Formulas
| Formula | When To Use |
|---|---|
| Face + Text | Personal brand, reaction videos |
| Before/After | Tutorial, transformation content |
| Product Hero | Product review, unboxing |
| Curiosity Gap | "You won't believe..." style |
| Bold Stat | Data-driven, educational content |
Workflow
- Gather requirements: concept, subject, brand assets, text overlay, style
- Verify disk references — STOP if missing (text descriptions alone won't work)
- Estimate credits and confirm
- Select CTR formula
- Compose prompt with character likeness block
- Generate via batch script
- Rank results by CTR potential
Critical Pitfalls
- Reusing file paths causes HTTP 500 — always upload fresh references
- Minimum image size: 1080px longest side
- Need 5+ face reference images from different angles
- Small text garbles — use Nano Banana Pro for better text
Aspect Ratio
16:9 for YouTube thumbnails (1280×720px standard)