Gemini API: Nano Banana Image Models Reach General Availability

Gemini CLI

Google promoted Nano Banana 2 (gemini-3.1-flash-image) and Nano Banana Pro (gemini-3-pro-image) to general availability on the Gemini Enterprise Agent Platform and Gemini API, exiting preview and gaining full production SLAs. A new video-to-image generation capability launches in preview — Nano Banana 2 can accept video files or YouTube URLs as context to generate thumbnails and infographics. Developers using preview model IDs must migrate to stable IDs before June 25, 2026.


Full article covering GA for both image models, video-to-image generation preview, migration deadline June 25 2026, enterprise vs standard API access, 1K/2K GA vs 4K preview status, provisioned throughput options.