{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/GenerateSD3Request", "title": "GenerateSD3Request", "type": "object", "required": [ "prompt" ], "properties": { "prompt": { "type": "string", "maxLength": 10000, "description": "Text describing what you wish to see in the output image." }, "negative_prompt": { "type": "string", "maxLength": 10000, "description": "Text describing elements to exclude from the output image." }, "image": { "type": "string", "format": "binary", "description": "An optional input image for image-to-image generation. When provided, the model uses this image as a reference guided by the strength parameter." }, "strength": { "type": "number", "minimum": 0, "maximum": 1, "default": 0.7, "description": "Controls how much influence the input image has on the output. Lower values produce images closer to the input, higher values allow more creative deviation. Only applicable for image-to-image mode." }, "aspect_ratio": { "type": "string", "enum": [ "16:9", "1:1", "21:9", "2:3", "3:2", "4:5", "5:4", "9:16", "9:21" ], "default": "1:1", "description": "Controls the aspect ratio of the generated image. Only applicable for text-to-image mode." }, "model": { "type": "string", "enum": [ "sd3", "sd3-turbo", "sd3.5-large", "sd3.5-large-turbo", "sd3.5-medium" ], "default": "sd3.5-large", "description": "The Stable Diffusion 3 model variant to use for generation." }, "seed": { "type": "integer", "minimum": 0, "maximum": 4294967294, "default": 0, "description": "A value to control randomness in generation." }, "output_format": { "type": "string", "enum": [ "jpeg", "png", "webp" ], "default": "png", "description": "The output format of the generated image." }, "mode": { "type": "string", "enum": [ "text-to-image", "image-to-image" ], "default": "text-to-image", "description": "The generation mode. Use text-to-image for prompt-only generation or image-to-image when providing a reference image." } } }