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inference.gemini-3-1-flash.img2img.v1

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The inference.gemini-3-1-flash.img2img.v1 job transforms an input image guided by a text prompt using Gemini 3.1 Flash Image.

{
    "type": "inference.gemini-3-1-flash.img2img.v1",
    "config": {
        "prompt": "a serene mountain landscape at golden hour",
        "image": "reference.png"
    }
}

Additional configuration:

  • images (array)
  • aspect_ratio (string; one of 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9; default 1:1)
  • resolution (string; one of 1K, 2K, 4K; default 1K)
  • google_search (boolean; default False)
  • include_messages (boolean; default False)

This job type is also available under its partner alias inference.partner.gemini-3-1-flash.img2img.v1.

Schema

Section titled “Schema”
{
  "type": "object",
  "required": [
    "type",
    "config"
  ],
  "additionalProperties": false,
  "properties": {
    "type": {
      "type": "string"
    },
    "config": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "prompt"
      ],
      "properties": {
        "images": {
          "type": "array",
          "minItems": 1,
          "maxItems": 14,
          "items": {
            "type": "string",
            "format": "filename",
            "example": "input.png",
            "description": "The filename of the input image."
          },
          "description": "Reference images for image-to-image generation. Up to 14 images can be provided."
        },
        "prompt": {
          "type": "string",
          "minLength": 1,
          "maxLength": 5000,
          "examples": [
            "Transform this into a watercolor painting"
          ],
          "description": "A description of the desired output image."
        },
        "aspect_ratio": {
          "type": "string",
          "default": "1:1",
          "enum": [
            "1:1",
            "2:3",
            "3:2",
            "3:4",
            "4:3",
            "4:5",
            "5:4",
            "9:16",
            "16:9",
            "21:9"
          ],
          "description": "Aspect ratio of output image."
        },
        "resolution": {
          "type": "string",
          "default": "1K",
          "enum": [
            "1K",
            "2K",
            "4K"
          ],
          "description": "Resolution/image size of output. Use uppercase K."
        },
        "google_search": {
          "type": "boolean",
          "default": false,
          "description": "Enable Google Search grounding to inform image generation with real-world information."
        },
        "include_messages": {
          "type": "boolean",
          "default": false,
          "description": "Enable to include the model's messages in the output as message.txt files."
        }
      }
    }
  },
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}