Niche AI prompt guide PDFs
| Startup cost | $0 |
|---|---|
| Hours / week | ~3 |
| Skill level | Beginner |
| Tools | ChatGPT/Suno, Gumroad |
| First step to first customer | Publish one $5 prompt guide for a single tool niche. |
| Real proof | Reddit: $8K in a year selling PDF prompt guides ↗ Figures are self-reported by the linked source unless noted. |