Edit images with GPT Image 2.5 Sunburst, the maximum-precision tier for premium creative work. Try free on Muapi — pay per generation, no subscription.
Transform and edit existing images using GPT-Image-2.5 Sunburst, OpenAI's slower, higher-precision GPT Image 2.5 tier, tuned for maximum edit precision on a single critical edit.
About this model
GPT Image 2.5 Sunburst Image to Image is OpenAI's newest instruction-based image editing model. It changes only what you ask for while keeping the rest of a scene untouched, and keeps earlier edits intact across a multi-turn chain instead of drifting or degrading like GPT Image 2. GPT-Image-2.5 Sunburst is OpenAI's higher-precision tier, trading longer generation times for an extra level of precision on detailed creative work. See GPT Image 2.5 Flare for the faster tier.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | $0.06 (1K) / $0.10 (2K) / $0.16 (4K) per image | Priced by output resolution; no subscription required. |
| Fal.ai | $0.006–$0.10 per image (token-based, varies by resolution and quality) | Fal charges per input/output image token rather than a flat per-image rate. |
| Replicate | Not available | GPT Image 2.5 is not available on Replicate. |
Priced by output resolution; no subscription required.
Fal charges per input/output image token rather than a flat per-image rate.
GPT Image 2.5 is not available on Replicate.
** Competitor pricing is estimated based on similar model architectures and usage tiers.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt | string | Text instructions describing the desired transformation. Maximum 20,000 characters. | Change only the beverage bottle in the center to a matte black can labeled "PEAK", keeping the exact same lighting, shadows, reflective surface, background props, and camera angle. Do not change anything else in the scene. |
| Image URLs | array | Upload or provide input images to transform. Up to 16 images supported. | https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/gpt-image-2-image-to-image-in.jpg |
| Aspect Ratio | Enum (13 options) | Output image aspect ratio. Note: images with aspect ratio 'auto' (or unspecified) will only be converted to 1K; 1:1 cannot be converted to 4K — otherwise the task will fail to create. | auto |
| Resolution | Enum (3 options) | Image resolution. Note: images with a 1:1 aspect ratio cannot be converted to 4K. Images with aspect ratio 'auto' (or unspecified) will only be converted to 1K; otherwise the task will fail to create. | 2K |
| Quality | Enum (5 options) | Output quality tier. "high" is rendered by the primary provider; "low", "medium", "xhigh", and "max" render on an alternate provider with a wider quality range. | high |
Text instructions describing the desired transformation. Maximum 20,000 characters.
Change only the beverage bottle in the center to a matte black can labeled "PEAK", keeping the exact same lighting, shadows, reflective surface, background props, and camera angle. Do not change anything else in the scene.Upload or provide input images to transform. Up to 16 images supported.
https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/gpt-image-2-image-to-image-in.jpgOutput image aspect ratio. Note: images with aspect ratio 'auto' (or unspecified) will only be converted to 1K; 1:1 cannot be converted to 4K — otherwise the task will fail to create.
autoImage resolution. Note: images with a 1:1 aspect ratio cannot be converted to 4K. Images with aspect ratio 'auto' (or unspecified) will only be converted to 1K; otherwise the task will fail to create.
2KOutput quality tier. "high" is rendered by the primary provider; "low", "medium", "xhigh", and "max" render on an alternate provider with a wider quality range.
highDeveloper documentation
Provide a source image — upload or link up to 16 reference images.
Write a precise instruction — state what should change and what must stay identical (e.g. "replace only the bottle, keep the lighting and background exactly as shown").
Submit the request — call the endpoint below and poll for the result:
curl -X POST https://api.muapi.ai/api/v1/gpt-image-2.5-sunburst-image-to-image \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"prompt": "Change only the jacket color to forest green, keep everything else identical", "images_list": ["https://example.com/source.jpg"]}'
request_id against /api/v1/predictions/{id}/result until status is completed.Frequently asked
It is OpenAI's newest instruction-based image editing model, alongside ChatGPT Images 2.5, available via the GPT-Image-2.5 Flare and Sunburst API models.
Yes. GPT-Image-2.5 Flare and GPT-Image-2.5 Sunburst image editing are both live on Muapi.
GPT Image 2.5 is more reliable at changing only the requested element while preserving the rest of a complex scene, and keeps earlier edits intact across multiple turns instead of drifting.
Sunburst trades longer generation times for an extra level of precision on detailed creative work. Use [GPT Image 2.5 Flare](/playground/gpt-image-2.5-flare-image-to-image) if you need the faster tier instead.
Yes. [GPT Image 2 Image to Image](/playground/gpt-image-2-image-to-image) and GPT Image 2.5 (Flare and Sunburst) editing are all live on Muapi today.
Create a free Muapi account and API key, then call the `gpt-image-2.5-sunburst-image-to-image` endpoint directly — no waitlist or approval step required.