GPT-Image-2
curl --request POST \
--url https://api.gravitex.ai/v1/images/generations \
--header 'Authorization: <authorization>'Image Series
GPT-Image-2
OpenAI GPT-Image-2 text-to-image and image-to-image
POST
/
v1
/
images
/
generations
GPT-Image-2
curl --request POST \
--url https://api.gravitex.ai/v1/images/generations \
--header 'Authorization: <authorization>'Documentation Index
Fetch the complete documentation index at: https://docs.gravitex.ai/llms.txt
Use this file to discover all available pages before exploring further.
Introduction
GPT-Image-2 usesPOST /v1/images/generations for both text-to-image and image-to-image: omit image for T2I; include image (URL or Base64) for I2I. Responses use b64_json with usage token stats.
For full parameters and other image models, see Image generation.
Authentication
Bearer Token, e.g.
Bearer sk-xxxxxxxxxxSupported models
| Model ID | Description |
|---|---|
gpt-image-2 | OpenAI GPT-Image-2, multi-size including 4K |
Request examples
- Text-to-image
- Image-to-image (generations)
- Image-to-image (edits)
curl -X POST "https://api.gravitex.ai/v1/images/generations" \
-H "Authorization: Bearer sk-xxxxxxxxxx" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-image-2",
"prompt": "A white cat running under the stars, cyberpunk style",
"size": "1024x1536",
"quality": "high",
"n": 1
}'
curl -X POST "https://api.gravitex.ai/v1/images/generations" \
-H "Authorization: Bearer sk-xxxxxxxxxx" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-image-2",
"prompt": "Change the scene to night cyberpunk",
"image": "https://example.com/input.png",
"size": "1024x1024",
"quality": "high"
}'
curl -X POST "https://api.gravitex.ai/v1/images/edits" \
-H "Authorization: Bearer sk-xxxxxxxxxx" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-image-2",
"prompt": "Change background to beach sunset",
"image": "https://example.com/input.png",
"size": "1024x1024",
"quality": "high"
}'
Common parameters
- model:
gpt-image-2 - prompt: Description or edit instruction
- image: Reference image for I2I
- size: e.g.
1024x1024,1024x1536,2880x2880(dimensions multiple of 16) - quality:
low,medium,high - n: Number of images (1â10)
âI