Nano Banana 2 (Gemini 3.1 Flash Image Preview)

Nano Banana 2 (Gemini 3.1 Flash Image Preview) by Google excels in the Image Generation category, where it ranks #4 with a composite score of 66/100. 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) It is particularly strong in areas highlighted by its top benchmark performance and adoption metrics, making it suitable for both individual developers and enterprise teams looking for a reliable image generation solution.

Nano Banana 2 (Gemini 3.1 Flash Image Preview) is priced at $0.25 per million input tokens and $1.50 per million output tokens (USD). Contact the provider for volume discounts and enterprise pricing. Pricing is competitive within the image generation category and reflects the model's quality-to-cost ratio.

In the Image Generation category, Nano Banana 2 (Gemini 3.1 Flash Image Preview) holds rank #4 out of 4 models tracked. Its quality rank is #4 and adoption rank is #4. You can use our comparison tool at /compare to see detailed side-by-side metrics with specific alternatives. Key differentiators include its composite scoring across benchmarks, community sentiment, and real-world adoption rates.

Nano Banana 2 (Gemini 3.1 Flash Image Preview) has been evaluated across 6 different signals. Its strongest areas include Capabilities (71/100), Context Window (86/100), Output Capacity (94/100). These scores are derived from industry-standard benchmarks, community ratings, and real-world performance metrics. The composite score of 66/100 reflects a weighted combination of all tracked signals.

Nano Banana 2 (Gemini 3.1 Flash Image Preview) is a paid model, though some providers may offer trial credits or limited free tiers for evaluation. Check Google's website for current free tier availability and promotional offers.