Image model by OpenAI
GPT Image 2.5 Sunburst API
model: gpt-image-2.5-sunburst
Call GPT Image 2.5 Sunburst with your KeelRouter API key, the same key you use for every other model. From $0.0068 per image, paid per call from a prepaid balance. Failed calls are free.
Pricing
| Option | Price |
|---|---|
| 1K low | $0.0068 per image |
| 1K medium | $0.015 per image |
| 1K high | $0.033 per image |
| 1K xhigh | $0.039 per image |
| 1K max | $0.039 per image |
| 2K low | $0.0079 per image |
| 2K medium | $0.018 per image |
| 4K low | $0.014 per image |
| 4K medium | $0.033 per image |
Call it
Async: POST /v1/images/generations returns a taskId; poll the same path with ?task_id= or pass a callback_url.
curl https://api.keelrouter.com/v1/images/generations \
-H "Authorization: Bearer $KEELROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-image-2.5-sunburst",
"prompt": "A lighthouse at dawn, watercolor",
"resolution": "1K",
"quality": "low"
}'Parameters
| Name | Type | Notes |
|---|---|---|
| model | string | Required. gpt-image-2.5-sunburst |
| prompt | string | Required. |
| size | string | |
| quality | string | One of low, medium, high, xhigh, max, auto. Default high. |
| aspect_ratio | string | |
| resolution | string | One of 1K, 2K, 4K. Default 1K. |
| image | string | |
| image_urls | array | |
| background | string | One of transparent, opaque, auto. |
| output_format | string | One of png, jpeg, webp. |
| n | number | Range 1–…. |
| callback_url | string | Optional https URL; we POST the result when the task ends |
FAQ
- How much does the GPT Image 2.5 Sunburst API cost on KeelRouter?
- From $0.0068 per image. You pay per call from a prepaid USD balance; failed calls are not charged.
- How do I call GPT Image 2.5 Sunburst?
- POST to /v1/images/generations with model "gpt-image-2.5-sunburst". You get a taskId back; poll the same endpoint with ?task_id= or pass a callback_url.
- Is this the official GPT Image 2.5 Sunburst API?
- No. KeelRouter is an independent API gateway. Requests run on GPT Image 2.5 Sunburst through our upstream providers, and the image model keeps its own safety filters.
- How long are results kept?
- Result files are kept for 30 days, then deleted. Download what you want to keep.
More from OpenAI
KeelRouter is an independent service and is not affiliated with OpenAI. GPT Image 2.5 Sunburst is a trademark of its owner, used here only to name the model a request runs on.