Gemini 3 Pro Image

Gemini 3 Pro Image (gemini-3-pro-image, Nano Banana Pro) is Google's native image model. Standard paid rates: text and image input $2.00 per 1M tokens. Image input is billed as 560 tokens, about $0.0011 per image. Text and thinking output matches short-context Gemini 3.1 Pro at $12 per 1M tokens. Image output is $120 per 1M tokens. A 1K or 2K image uses 1,120 tokens, about $0.134; a 4K image uses 2,000 tokens, about $0.24.