Nano Banana 2 (Gemini 3.1 Flash Image) is Google's latest image generation and editing model, delivering Pro-level visual quality at Flash speed. Built on Gemini 3.1 Flash, it combines advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible. It represents a major step up from the original Nano Banana in both output fidelity and creative versatility.