Google: Nano Banana Pro (Gemini 3 Pro Image)

Models

Model details

Model
google/gemini-3-pro-image
Provider
openrouter
API
openai-completions
Base URL
https://openrouter.ai/api/v1
Input
text, image
Reasoning
Yes
Context window
65,536
Max tokens
32,768
Cost / million input
$2
Cost / million output
$12
Cost / million cache read
$0.2
Cost / million cache write
$0.375

Also available from other providers

No obvious cross-provider matches found.

Model config JSON
{
  "providers": {
    "openrouter": {
      "apiKey": "YOUR_API_KEY",
      "models": [
        {
          "id": "google/gemini-3-pro-image",
          "name": "Google: Nano Banana Pro (Gemini 3 Pro Image)",
          "reasoning": true,
          "input": [
            "text",
            "image"
          ],
          "contextWindow": 65536,
          "maxTokens": 32768,
          "cost": {
            "input": 2,
            "output": 12,
            "cacheRead": 0.2,
            "cacheWrite": 0.375
          },
          "compat": {
            "supportsDeveloperRole": false,
            "thinkingFormat": "openrouter"
          }
        }
      ],
      "api": "openai-completions",
      "baseUrl": "https://openrouter.ai/api/v1"
    }
  }
}