OpenAI GPT Image 2.5: AI Image Generator
Generate images from text with GPT Image 2.5. Sharper detail and up to 50% faster than GPT Image 2. Coming soon on Muapi — no subscription.
Generate images from text with GPT Image 2.5. Sharper detail and up to 50% faster than GPT Image 2. Coming soon on Muapi — no subscription.
About this model
GPT Image 2.5 Text to Image is OpenAI's newest image model, announced September 8, 2026, generating high-fidelity images from detailed text prompts with sharper detail, richer textures, and up to 50% lower latency than GPT Image 2. Choose the Flare tier for fast, high-volume generation or the Sunburst tier for maximum precision on premium creative work. Muapi is bringing GPT Image 2.5 online as soon as OpenAI opens general API access.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | TBD at launch | Coming soon — general availability pricing not yet published by OpenAI. |
| Fal.ai | Not available | GPT Image 2.5 is not yet available on Fal.ai. |
| Replicate | Not available | GPT Image 2.5 is not yet available on Replicate. |
Coming soon — general availability pricing not yet published by OpenAI.
GPT Image 2.5 is not yet available on Fal.ai.
GPT Image 2.5 is not yet 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. |
| Model | Enum (2 options) | GPT-Image-2.5 Flare is the default, fastest tier. GPT-Image-2.5 Sunburst is a slower tier tuned for maximum edit precision on premium creative work. | flare |
| Aspect Ratio | Enum (10 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 (3 options) | Generation quality. 'low' and 'medium' use a faster, cheaper backend; 'high' uses the higher-fidelity backend. | 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.GPT-Image-2.5 Flare is the default, fastest tier. GPT-Image-2.5 Sunburst is a slower tier tuned for maximum edit precision on premium creative work.
flareOutput 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.
2KGeneration quality. 'low' and 'medium' use a faster, cheaper backend; 'high' uses the higher-fidelity backend.
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.
Pick a model tier — flare (default) for speed and volume, or sunburst for maximum edit precision on premium work.
Set aspect_ratio, resolution, and quality — once live, call the endpoint below and poll for the result:
curl -X POST https://api.muapi.ai/api/v1/gpt-image-2.5-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", "model": "flare", "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, announced September 8, 2026, powering ChatGPT Images 2.5 and two new API models: GPT-Image-2.5 Flare and GPT-Image-2.5 Sunburst.
Not yet. This endpoint is in early access with OpenAI. Muapi will enable it as soon as general API access opens — no action needed on your part.
Flare is the default, fastest tier with the same quality and editing gains as 2.5. Sunburst is a slower tier tuned for maximum precision on premium creative and editing workflows.
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) text-to-image and image editing are live now while GPT Image 2.5 is in development.
Create a free Muapi account and API key today — the gpt-image-2.5-text-to-image endpoint will activate automatically for existing users once OpenAI opens general availability.