Gpt Image 2.5 Sunburst
gpt-image-2-5-sunburstOpenAI's most capable image model, built for workflows where editing precision matters most. Generate and edit images from text and image inputs with strong instruction following, sharp text rendering, and detailed control.
- Price
- $0.30/image
- Aspect ratios
- 1:1, 3:2, 2:3, 4:3, 3:4, 16:9, 9:16
- Input → output
- Text → Image
- Developer
- OpenAI
- Updated
- September 24, 2026
Playground
Try Gpt Image 2.5 Sunburst
Input & output
This run
$0.30 · 30 credits
For accounts without a purchase: runs above 2 credits need a top-up.
New here?
10 free credits ($0.10) when you sign up with Google
Usable 24 hours after sign-up, up to 5 runs per day and at most 2 credits per run. Other sign-in methods start without credits.
Examples
Open full sizePrompt
a bird
Settings
- aspect_ratio
- 16:9
- quality
- auto
Open full sizePrompt
A golden retriever puppy wearing tiny sunglasses on a sunny beach, photorealistic, shallow depth of field
Settings
- aspect_ratio
- 1:1
- quality
- high
About Gpt Image 2.5 Sunburst
Gpt Image 2.5 Sunburst is a model by OpenAI in the Image generation category. On Railwail, Gpt Image 2.5 Sunburst costs $0.30 per image. Depending on the settings, the price ranges from $0.0144/image to $0.60/image. Supported aspect ratios: 1:1, 3:2, 2:3, 4:3, 3:4, 16:9, and 9:16.
Pricing
| quality: autoDefault | $0.30 per image |
|---|---|
| quality: low | $0.0144 per image |
| quality: medium | $0.0564 per image |
| quality: high | $0.1536 per image |
| quality: xhigh | $0.30 per image |
| quality: max | $0.60 per image |
- 1 credit = $0.01
Cost calculator
Price calculator
Total
$30.00
3,000 credits
Per run
$0.30 · 30 credits
Fixed price per run, known before the run starts.
API
curl https://railwail.com/api/v1/images/generations \
-H "Authorization: Bearer $RAILWAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-image-2-5-sunburst",
"prompt": "A lighthouse on a rocky coast at sunset, photorealistic"
}'import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["RAILWAIL_API_KEY"],
base_url="https://railwail.com/api/v1",
)
image = client.images.generate(
model="gpt-image-2-5-sunburst",
prompt="A lighthouse on a rocky coast at sunset, photorealistic",
)
print(image.data[0].url)import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.RAILWAIL_API_KEY,
baseURL: "https://railwail.com/api/v1",
});
const image = await client.images.generate({
model: "gpt-image-2-5-sunburst",
prompt: "A lighthouse on a rocky coast at sunset, photorealistic"
});
console.log(image.data[0].url);// npm install railwail
import railwail from "railwail";
const rw = railwail(process.env.RAILWAIL_API_KEY);
const res = await rw.image("gpt-image-2-5-sunburst", "A lighthouse on a rocky coast at sunset, photorealistic");
console.log(res.data[0].url);Specifications
- Model ID
gpt-image-2-5-sunburst- Developer
- OpenAI
- Category
- Image generation
- Input
- Text
- Output
- Image
- Aspect ratios
- 1:1, 3:2, 2:3, 4:3, 3:4, 16:9, 9:16
- Billing
- Fixed price, known before the run
- Catalog entry updated
- September 24, 2026
Input parameters
Inputs and settings from the model's input schema. The example in the API section shows which of them the API accepts.
promptrequiredType: TextDefault: –Allowed values: –aspectRatioType: ChoiceDefault: –Allowed values: 1:1, 3:2, 2:3, 4:3, 3:4, 16:9, 9:16, auto, 1024x1024, 1536x1024, 1024x1536, 1536x1152, 1152x1536, 2048x2048, 2048x1152, 1152x2048, 3840x2160, or 2160x3840
Tags
- replicate
- openai
- text-to-image
Use cases
Frequently asked questions
What is Gpt Image 2.5 Sunburst?
Gpt Image 2.5 Sunburst is a model by OpenAI in the Image generation category. On Railwail you can call it with an API key through the Railwail API.
How much does Gpt Image 2.5 Sunburst cost on Railwail?
On Railwail, Gpt Image 2.5 Sunburst costs $0.30 per image. Depending on the settings, the price ranges from $0.0144/image to $0.60/image. The price is known before the run starts. Usage is paid from prepaid credits; 1 credit equals $0.01.
Which settings does Gpt Image 2.5 Sunburst support?
According to its input schema, Gpt Image 2.5 Sunburst knows these parameters: prompt and aspectRatio (1:1, 3:2, 2:3, 4:3, 3:4, 16:9, 9:16, auto, 1024x1024, 1536x1024, 1024x1536, 1536x1152, 1152x1536, 2048x2048, 2048x1152, 1152x2048, 3840x2160, or 2160x3840).
How fast is Gpt Image 2.5 Sunburst?
There are not enough measured runs of Gpt Image 2.5 Sunburst on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.
Is Gpt Image 2.5 Sunburst better than FLUX 1.1 Pro?
That depends on the task. Gpt Image 2.5 Sunburst (OpenAI) and FLUX 1.1 Pro (Black Forest Labs) are both models in the Image generation category. The comparison page shows their prices and specifications side by side.
Compare Gpt Image 2.5 Sunburst and FLUX 1.1 ProHow do I use Gpt Image 2.5 Sunburst through the API?
Create a Railwail API key and send your request with the model ID gpt-image-2-5-sunburst. Code examples for curl, Python and JavaScript are in the API section of this page.
Comparable models
All in this category- FLUX 1.1 ProBlack Forest Labs
Black Forest Labs' flagship text-to-image model. Faster generation than FLUX.1 Pro at higher prompt adherence, with strong photorealism and reliable spatial composition. Runs as a hosted Replicate model.
- Flux 1.1 Pro UltraBlack Forest Labs
FLUX 1.1 Pro in ultra mode. Up to 4 megapixel images with raw mode for photorealism.
- Flux DevBlack Forest Labs
Black Forest Labs' development model. Fast, high-quality image generation with LoRA support.
Use Gpt Image 2.5 Sunburst via the API
One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = $0.01.