OpenAI

This page is auto-generated from model configurations. Last updated: 2026-03-13.

This reference lists all available OpenAI image generation models and their parameters. Use these parameter names when calling the Generation API.

GPT Image
GPT Image 1.5

GPT Image

OpenAI's GPT Image 1 model for image editing and generation

Model ID: model_openai-gpt-image-1-editing

Capabilities: txt2img, img2img

LLM Markdown: https://app.scenario.com/api/models/model_openai-gpt-image-1-editing/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`referenceImages`	file_array	No	-	-	-	-	Reference images for style or content guidance
`prompt`	string	Yes	-	-	-	-	Text prompt for image editing
`numOutputs`	number	No	`1`	1	10	-	Number of images to generate
`aspectRatio`	string	No	`auto`	-	-	`auto`, `1:1`, `3:2`, `2:3`	Aspect ratio for the generated image
`inputFidelity`	string	No	`high`	-	-	`low`, `high`	Preserve details from input images
`quality`	string	No	`high`	-	-	`high`, `medium`, `low`	Generation quality
`background`	string	No	`auto`	-	-	`transparent`, `opaque`, `auto`	Background transparency

GPT Image 1.5

OpenAI's GPT Image 1.5 model for image editing

Model ID: model_openai-gpt-image-1-5-editing

Capabilities: txt2img, img2img

LLM Markdown: https://app.scenario.com/api/models/model_openai-gpt-image-1-5-editing/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`referenceImages`	file_array	No	-	-	-	-	Reference images for style or content guidance
`prompt`	string	Yes	-	-	-	-	Text prompt for image editing
`numOutputs`	number	No	`1`	1	10	-	Number of images to generate
`aspectRatio`	string	No	`auto`	-	-	`auto`, `1:1`, `3:2`, `2:3`	Aspect ratio for the generated image
`inputFidelity`	string	No	`high`	-	-	`low`, `high`	Preserve details from input images
`quality`	string	No	`high`	-	-	`high`, `medium`, `low`	Generation quality
`background`	string	No	`auto`	-	-	`transparent`, `opaque`, `auto`	Background transparency