Simon Willison 11/20/2025

Nano Banana Pro aka gemini-3-pro-image-preview is the best available image generation model

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This article provides a detailed review of Google's newly released Nano Banana Pro (Gemini 3 Pro Image Preview) image generation model. It covers the model's advanced capabilities including high-resolution output up to 4K, advanced text rendering, Google Search grounding, thinking mode with interim reasoning, and support for up to 14 reference images. The author shares practical testing results using example prompts and discusses API pricing structure and availability.

Nano Banana Pro aka gemini-3-pro-image-preview is the best available image generation model

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