Google launches Nano Banana 2 image AI model: supports 4K resolution output

Google's DeepMind has officially released its next-generation image generation model, Nano Banana 2 (Gemini 3.1 Flash Image). The model achieves a balance between image quality and generation speed, and its core strength lies in leveraging Gemini's knowledge base and real-time web search to significantly improve its understanding of complex Chinese prompts, spatial proportions, real-world common sense (such as landmarks and the imagery of classical Chinese poems), and consistency across multiple objects.