Generate images from text with GPT Image 2.5 Sunburst, the higher-precision tier for detailed creative work. Try free — pay per generation, no subscription.
Generate high-fidelity images from text prompts using GPT-Image-2.5 Sunburst, OpenAI's slower, higher-precision GPT Image 2.5 tier, tuned for maximum edit precision on premium creative work.
About this model
GPT Image 2.5 Sunburst Text to Image is OpenAI's newest image model generating high-fidelity images from detailed text prompts with sharper detail, richer textures, and up to 50% lower latency than 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 prompt describing the image to generate. Maximum 20,000 characters. | A girl doing livestream makeup tutorials while tiny workers inside her mirror physically repaint the reflection in real time, miniature ladders, paint buckets, glowing vanity lights, cluttered modern bedroom aesthetic, insanely detailed reflections, playful surreal realism, highly creative composition, luxury commercial quality. |
| 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 prompt describing the image to generate. Maximum 20,000 characters.
A girl doing livestream makeup tutorials while tiny workers inside her mirror physically repaint the reflection in real time, miniature ladders, paint buckets, glowing vanity lights, cluttered modern bedroom aesthetic, insanely detailed reflections, playful surreal realism, highly creative composition, luxury commercial quality.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.
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
Write your prompt — describe the subject, style, lighting, and composition. GPT Image 2.5 follows complex, multi-part instructions more reliably than GPT Image 2.
Set aspect_ratio and resolution — then call the endpoint below and poll for the result:
curl -X POST https://api.muapi.ai/api/v1/gpt-image-2.5-sunburst-text-to-image \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"prompt": "A hyperrealistic portrait of an astronaut on Martian dunes at golden hour", "aspect_ratio": "16:9", "resolution": "2K"}'
request_id against /api/v1/predictions/{id}/result until status is completed.Frequently asked
GPT Image 2.5 is OpenAI's newest image model powering ChatGPT Images 2.5 and two new API models: GPT-Image-2.5 Flare and GPT-Image-2.5 Sunburst.
Yes. GPT-Image-2.5 Flare and GPT-Image-2.5 Sunburst are both live on Muapi for text-to-image and image editing.
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-text-to-image) if you need the faster tier instead.
GPT Image 2.5 has better reference-photo fidelity, more precise single-element editing, more reliable multi-turn consistency, and up to 50% lower generation latency than GPT Image 2.
Yes. [GPT Image 2](/playground/gpt-image-2-text-to-image) and GPT Image 2.5 (Flare and Sunburst) are all live on Muapi today.
Create a free Muapi account and API key, then call the `gpt-image-2.5-sunburst-text-to-image` endpoint directly — no waitlist or approval step required.