Gemini 3 Pro Preview (Vertex)

Model details

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Gemini 3 Pro Preview (Vertex)

Model
gemini-3-pro-preview
Provider
google-vertex
API
google-vertex
Base URL
https://{location}-aiplatform.googleapis.com
Input
text, image
Reasoning
Yes
Context window
1,000,000
Max tokens
64,000
Cost / million input
$2
Cost / million output
$12
Cost / million cache read
$0.2
Cost / million cache write
$0

Also available from other providers

Model config JSON
{
  "providers": {
    "google-vertex": {
      "apiKey": "YOUR_API_KEY",
      "models": [
        {
          "id": "gemini-3-pro-preview",
          "name": "Gemini 3 Pro Preview (Vertex)",
          "reasoning": true,
          "input": [
            "text",
            "image"
          ],
          "contextWindow": 1000000,
          "maxTokens": 64000,
          "cost": {
            "input": 2,
            "output": 12,
            "cacheRead": 0.2,
            "cacheWrite": 0
          }
        }
      ],
      "api": "google-vertex",
      "baseUrl": "https://{location}-aiplatform.googleapis.com"
    }
  }
}