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Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible. Aspect ratios can be controlled with the [image_config API Parameter](https://openrouter.ai/docs/features/multimodal/image-generation#image-aspect-ratio-configuration)
| Signal | Strength | Weight | Impact |
|---|---|---|---|
| Capabilitiesjust now | 71 | 30% | +21.4 |
| Recencyjust now | 100 | 15% | +15.0 |
| Output Capacityjust now | 94 | 15% | +14.1 |
| Context Windowjust now | 86 | 15% | +12.9 |
| Pricingjust now | 3 | 25% | +0.8 |
Community and practitioner feedback adds real-world signal on top of benchmarks and pricing.
Share your experience with Nano Banana 2 (Gemini 3.1 Flash Image Preview) and help the community make better decisions.
Cost Estimator
You save $26.62/month vs category average