OpenAI

GPT Image 2.5 Sunburst

IMAGE

GPT-Image-2.5-Sunburst is an image generation and editing model that prioritizes editing precision for production-ready product images, advertising creative, and iterative fine editing. It supports text-to-image and editing with up to 16 reference images.

gpt-image-2.5-sunburst

PROVIDERSOpenAIENDPOINTSimage-generationCAPABILITIEStext_to_image · image_to_image

PRICING

The following prices are estimates. Actual charges are based on the final output.

Quality	Estimated unit price
Low	$0.0156 / image
Medium	$0.0624 / image
High	$0.1404 / image
XHigh	$0.2496 / image
Max	$0.5616 / image

Estimated cost: number of generated images × unit price

Parameter	Type	Default	Range / values	Description
`model` *	`enum`	`gpt-image-2.5-sunburst`	gpt-image-2.5-sunburst	Model name.
`prompt` *	`string`	—	—	Text description for image generation or editing. Chinese and English are supported; describe the subject, scene, composition, style, lighting, and content to preserve or change.
`size`	`string`	`auto`	auto \| 1:1 \| 3:2 \| 2:3 \| 4:3 \| 3:4 \| 5:4 \| 4:5 \| 16:9 \| 9:16 \| 2:1 \| 1:2 \| 21:9 \| 9:21 \| 3:1 \| 1:3 \| exact pixels such as 1600x1200	Output aspect ratio or exact pixel size. For an exact size, width and height must be multiples of 16, each side no greater than 3840, aspect ratio no greater than 3:1, and total pixels between 655,360 and 8,294,400. Omit for image editing to derive the size from the reference image.
`resolution` *	`enum`	`1k`	1k · 2k · 4k	Output resolution tier. Ignored when size is an exact pixel value.
`quality` *	`enum`	—	low · medium · high · xhigh · max	Image quality tier. xhigh and max are supported by GPT-Image-2.5.
`n`	`integer`	`1`	1 ~ 4	Number of images to generate. Pass a number, not a quoted string.
`output_format`	`enum`	`png`	png · jpeg · webp	Output image format. Transparent backgrounds require png or webp.
`output_compression`	`integer`	—	0 ~ 100; only applies to jpeg and webp	Output compression level.
`background`	`enum`	—	auto · opaque · transparent	Background mode. transparent can only be used with output_format png or webp.
`moderation`	`enum`	`low`	auto · low	Content moderation level. When omitted, the request uses low.
`image_urls`	`array`	—	0 ~ 16 public HTTP(S) image URLs	Reference image URL array for image-to-image generation or editing. Up to 16 publicly accessible HTTP(S) image URLs are accepted; providing this field switches the request to editing mode.