nano-banana-image-gen
Installation
SKILL.md
Nano Banana 2 image generation reference
Nano Banana (NB) is Google's Gemini image generation family. NB2 = Gemini 3.1 Flash.
Model selection
| Model | Best for | Tradeoffs |
|---|---|---|
| NB1 | Existing workflows that already work, lowest cost, speed-critical | No thinking, no visual grounding, no extreme ratios |
| NB2 | Default for new projects (~95% of Pro quality) | ~15% slower than Pro at 2K, weaker arm/leg composition, spelling errors in infographics |
| Pro | Complex multi-layered prompts, extreme logical constraints, interior scale/logic | Most expensive |
Decision: Start with NB2. Step up to Pro only if NB2 consistently fails your specific prompt.