Photo Booth Upload offers two 'modes' of AI rendering: Stable Diffusion and Gemini (Nano-Banana). These each have their own strengths and weaknesses. While there is no specific formula to determine when to use one option over the other, we recommend starting with Nana-Banana. 

While Stable Diffusion is more literal (and slower), Gemini (NB) and Gemini (Pro) are more interpretive (and faster). 

Below is a rough break-down of the strengths and weaknesses of each, but you will always need to experiment with prompts regardless of which option you choose:

• Use Stable Diffusion when:

  • You want consistent, brand-aligned images

  • Prompts are pre-configured or professionally designed

  • Users expect high realism or specific styles

• Use Gemini Nano-Banana when:

  • Ease of use is critical

  • You want to include specific text in the image (such as comic-book "POW")

  • The experience is playful, fast, and informal

• Use Gemini Pro when:

  • You want faster results than Stable Diffusion, but more coherence than Nano-Banana

  • Users expect smarter interpretation (poses, scenes, moods, relationships between objects)

  • You’re building semi-polished experiences that still need speed

  • You want higher resolution images (up to 4K)

  • You want generative prompt renders that can be something other than square (such as Landscape and Portrait)