Show HN: Nano Banana 2 – Sub-second AI image gen via Gemini 3.1 Flash (nano-banana2.me)

The launch of Nano Banana 2 Pro, powered by Google's advanced Gemini 3.1 Flash model, marks a significant advancement in AI image generation, boasting sub-second generation speeds and enhanced image quality, reaching up to 4K resolution. Users can expect dramatic improvements over its predecessor, with image creation time slashed from approximately 12 seconds to just 4, and support for multi-turn style consistency and multilingual capabilities. This novel offering is not only accessible for free — allowing unlimited previews — but also promises robust integration via Google’s Vertex AI, enabling developers to access the model through a straightforward REST API. For the AI/ML community, Nano Banana 2 Pro's capabilities open new avenues for creative applications, reflecting a trend toward faster and more versatile generative tools. With transparent pricing starting at just $0.001 per image and enterprise-grade reliability, it democratizes access to high-quality image generation. The inclusion of official SDKs for popular programming languages like Python and Java further facilitates rapid development, making it easier for developers and creators to incorporate advanced AI image creation into their projects.