OpenAI
This page is auto-generated from model configurations. Last updated: 2026-09-01.
This reference lists all available OpenAI image generation models and their parameters. Use these parameter names when calling the Generation API.
GPT Image
Section titled “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
Section titled “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 |
GPT Image 2
Section titled “GPT Image 2”OpenAI GPT Image 2 for high-fidelity image generation and editing (Modal)
Model ID: model_openai-gpt-image-2
Capabilities: txt2img, img2img
LLM Markdown: https://app.scenario.com/api/models/model_openai-gpt-image-2/markdown
| Parameter | Type | Required | Default | Min | Max | Allowed Values | Description |
|---|---|---|---|---|---|---|---|
prompt | string | Yes | - | - | - | - | Text description of desired generation or edit. |
referenceImages | file_array | No | - | - | - | - | Reference images for editing. |
mask | file | No | - | - | - | - | PNG mask for inpainting, same dimensions as the first reference image. OpenAI uses the alpha channel only: fully transparent pixels are edited, fully opaque pixels are preserved. RGB white/black is ignored if there is no alpha. Export PNG with transparency — do not flatten. If you paint a white-on-black mask, convert the white (edit) region to transparent. |
numOutputs | number | No | 1 | 1 | 10 | - | Number of images to generate |
width | number | No | - | 16 | 3840 | - | Output width in pixels. |
height | number | No | - | 16 | 3840 | - | Output height in pixels. |
quality | string | No | auto | - | - | auto, high, medium, low | Generation quality |
background | string | No | auto | - | - | auto, opaque, transparent | Background option. Transparent is in Preview. |