Existing tools are often too complex, requiring "perfect" prompt engineering or hours of manual tweaking. Thumbly AI was built to turn that 3-hour struggle into a 2-minute win. Style Categories (Not Just Random Prompts): Most tools leave you guessing. We provide curated Style Categories. Whether it’s a high-energy vlog, Viral Beast, a minimalist tech review, Cinematic, or a dramatic storytelling vibe, you just pick the category and let the AI do the design work.