Nano Banana Pro and Nano Banana 2 officially released

Nano Banana Pro与Nano Banana 2正式发布

Google AI Developers released Nano Banana Pro and Nano Banana 2, mapped to gemini-3-pro-image and gemini-3.1-flash-image. The post says both are production-ready through the Gemini API, but does not disclose pricing, benchmarks, or runtime limits.

Why it matters: HKR-H/K/R all pass: Google names two image models and production Gemini API access. Missing pricing, benchmarks, and invocation limits keep it in the mid product-update band rather than a must-write release.