GPT Image 2.5 Sunburst

OpenAI's precision image model. GPT Image 2.5 Sunburst generates and edits images at 1K, 2K, or 4K with five quality levels up to Max, native transparent backgrounds, up to 16 reference images for exact, instruction-following edits, and up to 4 images per run.

$0.011per image (16:9; square images cost more)(~11 credits)Best price

77% less than the priciest provider (7 compared). Same model, same output.

Promptrequired

Input imagesoptional

Optional images to edit or use as reference (up to 16). Leave empty for pure text-to-image.

Resolution

Output resolution tier.

Aspect Ratio

Aspect ratio of the generated image. 'auto' lets the model choose.

Quality

Rendering quality. Low is a fast draft; xhigh and max push detail for final assets. The price difference is large.

Background

Transparent requires PNG or WebP output. Auto lets the model decide.

Output Format

The format of the generated image.

$0.011per image (16:9; square images cost more)(~11 credits)Best price

77% less than the priciest provider (7 compared). Same model, same output.

Output

Your result renders here.

Use GPT Image 2.5 Sunburst via the API

Generate with GPT Image 2.5 Sunburst from your own code. Async by design: submit a generation, get a run id back instantly, poll until it completes. Billed in credits at the best available provider price — from $0.005 per image.

POST /api/v1/generate/gpt-image-25-sunburstGet your API key →

1 — Start a generation

curl -X POST https://app.scenetra.com/api/v1/generate/gpt-image-25-sunburst \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt":"a watercolor fox in falling snow, soft light","quality":"medium","aspect_ratio":"1:1"}'

Response (202)

{
  "runId": "run_abc123",
  "status": "PENDING",
  "model": "gpt-image-25-sunburst",
  "estimatedCredits": 11,
  "statusUrl": "/api/v1/runs/run_abc123"
}

2 — Poll until COMPLETED (every 2-5 seconds)

curl https://app.scenetra.com/api/v1/runs/run_abc123 \
  -H "Authorization: Bearer YOUR_API_KEY"

Response

{
  "runId": "run_abc123",
  "status": "COMPLETED",
  "progress": { "completed": 1, "total": 1 },
  "outputs": [
    { "type": "image", "url": "https://images.scenetra.com/..." }
  ],
  "error": null,
  "estimatedCredits": 11
}

Request fields

Field	Type	Description	Default
prompt*	string	Describe the image to generate, or the edit to apply to the input images.	—
image_urls	string[] (https URLs)	Optional images to edit or use as reference (up to 16). Leave empty for pure text-to-image.	—
resolution	string	Output resolution tier.1K · 2K · 4K	1K
aspect_ratio	string	Aspect ratio of the generated image. 'auto' lets the model choose.auto · 21:9 · 16:9 · 3:2 · 4:3 · 5:4 · 1:1 · 4:5 · 3:4 · 2:3 · 9:16	auto
quality	string	Rendering quality. Low is a fast draft; xhigh and max push detail for final assets. The price difference is large.low · medium · high · xhigh · max	medium
background	string	Transparent requires PNG or WebP output. Auto lets the model decide.auto · transparent · opaque	auto
num_images	number	How many images to generate (1-4). Billed per image.	1
output_format	string	The format of the generated image.png · jpeg · webp	png
callbackUrl	string (https URL)	Optional. When the run finishes (completed or failed), we POST the final run status to this URL — same shape as the poll response, plus `model`, `params`, and `chargedCredits`. Best-effort; polling remains the source of truth.

Unknown fields are rejected with a helpful 400. Media fields take https URLs. There is no provider parameter — every run is routed to the cheapest capable provider automatically.

Good to know

Billing

Runs bill your account credits at provider cost with 0% markup. The submit response includes the credit estimate; failed generations are refunded automatically. Add ?dryRun=1 to get the estimate without running anything.

Errors

Errors are always { "error": { "code", "message" } } with stable codes: unauthorized, model_not_available, invalid_parameter, insufficient_credits, rate_limited. A failed run is not an HTTP error — poll responses report status: "FAILED" with the reason.

What makes GPT Image 2.5 Sunburst different

Built for editing precision

Sunburst is the precision tier of GPT Image 2.5: it spends more time per image and follows edit instructions closely while leaving everything you didn't ask to change untouched. Attach up to 16 reference images to revise a shot, combine subjects and styles, or carry a product across scenes — and because edits hold steady, multi-step refinements build on each other instead of drifting.

Five quality tiers, from draft to Max

Low, Medium, High, Extra High and Max let you match spend to purpose inside one node. Low drafts start at $0.005 per image; Medium is the everyday default at about $0.011 at 1K; Extra High and Max push fine texture and detail for print-ready finals. Iterate cheap, deliver at Max, all on the same prompt.

Native transparent backgrounds

Set Background to transparent with PNG or WebP output and Sunburst renders straight to an alpha channel — clean cutouts for product shots, stickers and logos with no separate background-removal step, feeding directly into downstream nodes on your board.

1K to 4K, any standard canvas

Eleven aspect ratios from 21:9 ultrawide to 9:16 vertical at 1K, 2K or 4K, plus Auto framing. Every run goes to the cheapest capable provider for your exact settings and is billed at provider cost with 0% markup — the node shows the price before you run.

Parameters

Parameter	Type	Description	Default
Prompt*	text	Describe the image to generate, or the edit to apply to the input images.	—
Input Images	image upload	Optional images to edit or use as reference (up to 16). Leave empty for pure text-to-image.	—
Resolution	select	Output resolution tier.1K · 2K · 4K	1K
Aspect Ratio	select	Aspect ratio of the generated image. Auto lets the model choose.Auto · 21:9 · 16:9 · 3:2 · 4:3 · 5:4 · 1:1 · 4:5 · 3:4 · 2:3 · 9:16	auto
Quality	select	Rendering quality. Low is a fast draft; Extra High and Max push detail for final assets — the price difference is large.Low · Medium · High · Extra High · Max	medium
Background	select	Transparent requires a PNG or WebP output. Auto lets the model decide.auto · transparent · opaque	auto
Number of Images	number	How many images to generate (1-4).	1
Output Format	select	The format of the generated image.png · jpeg · webp	png

Pricing

From $0.005 per image

Pay per generation — only pay for what you use.

Low - 1K / 2K

$0.005