gpt-image-2
Image
General image generation, text/img-to-image, 27 fixed sizes.
POST /v1/videos
| Spec | Detail |
|---|---|
| Modes | text→img · img→img |
| Size | 10 ratios × 1K/2K/4K (30 total) or auto |
| Seconds | —（image） |
| Refs | up to 5, optional |
| Billing | per image × resolution (1K/2K/4K) |
Supported sizes
1K
1024x1024 1024x1536 1536x1024 1152x1536 1536x1152 1216x1520 1520x1216 1536x864 864x1536 2016x864
2K
2048x2048 1344x2016 2016x1344 1536x2048 2048x1536 1600x2000 2000x1600 2048x1152 1152x2048 2688x1152
4K
2880x2880 2336x3504 3504x2336 2448x3264 3264x2448 2560x3200 3200x2560 3840x2160 2160x3840 3360x1440
Model notes
- Aspect ratios (10): 1:1 · 3:2 · 2:3 · 4:3 · 3:4 · 5:4 · 4:5 · 16:9 · 9:16 · 21:9.
- size must be one of the 30 fixed sizes below or auto; other values are rejected upstream.
- Image models use the async /v1/videos endpoint; results are images, no quality / n params.
- Pass reference_images for image-to-image (up to 5).
Request example
{
"model": "gpt-image-2",
"prompt": "a neon fox, cinematic",
"size": "1024x1024",
"tier": "2k"
}