Nano Banana 专业版 — Google Gemini 系列多模态图像生成模型. 含 Thinking 推理模式 + 高保真文本渲染. 1K/2K 同价档位, 4K 高端档位.
Model ID: gemini-3-pro-image-preview · Type: image · Provider: Google
Endpoints: /v1/images/generations · /v1beta/models/{model}:generateContent · /v1beta/models/{model}:streamGenerateContent · /v1/models/{model}:generateContent · /v1/models/{model}:streamGenerateContent
| Input (per 1M tokens) | $1.5 USD |
| Output (per 1M tokens) | $9 USD |
| Image output (per 1M tokens) | $90 USD |
Gemini 3 Pro Image (Nano Banana Pro) (`gemini-3-pro-image-preview`) is billed per usage at $1.5/1M in · $9/1M out, in USD. Current pricing is always listed at https://ai.yunbaozi.com/models/gemini-3-pro-image-preview.
Send a request to https://api.router.ai/v1/v1/images/generations with the header `Authorization: Bearer <your API key>` and `"model": "gemini-3-pro-image-preview"`. The API is OpenAI-compatible, so any OpenAI SDK works by changing base_url to https://api.router.ai/v1 — no other code change.
Gemini 3 Pro Image (Nano Banana Pro) can be called on: /v1/images/generations; /v1beta/models/{model}:generateContent; /v1beta/models/{model}:streamGenerateContent; /v1/models/{model}:generateContent; /v1/models/{model}:streamGenerateContent.
Gemini 3 Pro Image (Nano Banana Pro) is a image model from Google, available through the 国际云宝子（Ai） gateway with the same API key as every other model.
Call it through the 国际云宝子（Ai） OpenAI-compatible endpoint (API base: https://api.router.ai/v1). AI agents can discover and call every model on this gateway through MCP (https://mcp.router.ai/mcp) with no manual integration.