Start building

GPT Image 2.5 Sunburst

openai/gpt-image-2.5-sunburst

GPT Image 2.5 Sunburst prioritizes visual fidelity and precision for complex image generation workflows.

Use in agentGet API key
Base price
$0.20USD / run
Execution
sync
Model type
image
Input fields
5

Try the model

Playground

Open playground
Input
The text prompt to generate an image from.
Quality for the generated image Allowed values: low, medium, high.
The resolution of the generated image. Leave unset to preserve the provider's standard dimensions. Allowed values: 1k, 2k, 4k.
The aspect ratio of the generated image. Allowed values: 1:1, 1:2, 2:1, 1:3, 3:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 9:21, 21:9.
The format of the generated image. Allowed values: jpeg, png, webp.
OutputReady

Your output will appear here

Complete the inputs, then click Run.

Specifications

Pricing

Base price
$0.20 / run
Billing formula
(params.aspect_ratio == "21:9" || params.aspect_ratio == "9:21") ? ((params.quality ?? "high") == "low" ? 0.03 : ((params.quality ?? "high") == "medium" ? 0.08 : 0.30)) : ((params.quality ?? "high") == "low" ? 0.015 : ((params.quality ?? "high") == "medium" ? 0.05 : 0.20))

Context & modalities

Supported modes
sync, async
Input
Schema-defined
Output
image

Capabilities

Chat
Not supported
Vision
Not supported
Reasoning
Not supported
Structured output
Not supported
Function calling
Not supported
Audio input
Not supported

Access

Provider
OpenAI
Model ID
openai/gpt-image-2.5-sunburst
Execution
sync
API
Unified Run API
Endpoint
/v1/run

API README

GPT Image 2.5 Sunburst

GPT Image 2.5 Sunburst is the precision-oriented Image 2.5 option for complex text-to-image generation where visual fidelity and careful composition matter.

Highlights

  • Precision-oriented generation for complex prompts
  • Strong focus on visual fidelity and composition
  • Quality controls for low, medium, and high output
  • Flexible 1K, 2K, and 4K resolution settings

Pricing

QualityStandard aspect ratios21:9 or 9:21
Low$0.015$0.03
Medium$0.05$0.08
High$0.20$0.30

API

Call POST /v1/run. This model uses synchronous execution.

Parameters

  • prompt (required): text describing the image to generate
  • quality: low, medium, or high; defaults to high
  • resolution: 1k, 2k, or 4k
  • aspect_ratio: supported ratios from 1:3 through 3:1, including 1:1, portrait, landscape, and ultra-wide options
  • output_format: jpeg, png, or webp; defaults to png

Example

curl https://api.sandbase.ai/v1/run \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-image-2.5-sunburst","prompt":"An intricate architectural scene with balanced lighting","quality":"high","resolution":"2k","aspect_ratio":"16:9","output_format":"png"}'

Related Models

Start building

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API
Unified Run API endpoint
https://api.sandbase.ai/v1/run
Model ID
openai/gpt-image-2.5-sunburst
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/run" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "openai/gpt-image-2.5-sunburst",
  "prompt": "Generate an image of gray tabby cat hugging an otter with an orange scarf",
  "quality": "high",
  "aspect_ratio": "1:1",
  "output_format": "png"
}
SANDBASE_JSON
)
printf '%s\n' "$result"

Choose your model

Compare models

All language models
ModelContextInput / 1MOutput / 1MReleased
GPT Image 2.5 SunburstThis model
OpenAI		———Aug 20, 2026
GPT Image 2.5 Flare
OpenAI		———Aug 20, 2026
GPT Image 2.5 Flare Edit
OpenAI		———Aug 20, 2026
GPT Image 2.5 Sunburst Edit
OpenAI		———Aug 20, 2026
GPT Image 2
OpenAI		———Apr 21, 2026
GPT Image 2 Editing
OpenAI		———Apr 21, 2026