Skip to main content
Image Text to Image openai

GPT Image 2.6 Sunburst

GPT Image 2.6 Sunburst costs $0.052164/image (medium, 1:1) on FairStack · a text to image model for Character reference sheets, Storyboard sheets, Detailed editorial and cinematic stills. No subscription required. Pay per generation with full REST API access. FairStack applies a transparent 20% margin on infrastructure cost so you always see the real price.

FairStack price
$0.052164/image
medium, 1:1
Platform fee
Flat 20%

What is GPT Image 2.6 Sunburst?

GPT Image 2.6 Sunburst is the detail-focused model OpenAI shipped with Images 2.6 on 2026-11-04. In our bake-off it produced the most complete character reference sheet of the four GPT Image 2.5/2.6 variants (five turnaround views, expressions, details and a labelled palette) and the strongest photoreal portrait lighting. It is slower than its 2.5 sibling: about 27 seconds for a medium 1024x1024 image versus about 17 seconds on GPT Image 2.5 Sunburst. 2.6 uses the same per-token rates as 2.5 but spends more tokens at the low and medium tiers (about 4.2x at low and 3.3x at medium); at high, xhigh and max the two versions cost the same. Requests run against OpenAI directly, with fal.ai wired as a same-model fallback.

Key Features

Five quality tiers — low, medium, high, xhigh, max
Dense, well-organised reference sheets and storyboards
Strong text rendering, including CJK and Cyrillic scripts
OpenAI direct with a same-model fal.ai fallback

What are GPT Image 2.6 Sunburst's strengths?

Most complete character and reference sheets in the GPT Image family
Rich lighting and skin texture on portraits
Strong continuity across storyboard panels

What are GPT Image 2.6 Sunburst's limitations?

Slowest GPT Image 2.x variant at medium (about 27s median)
Low and medium tiers cost about 3-4x the same tier on GPT Image 2.5
May return a transparent background when the prompt reads like a logo or icon, even when a background colour is requested
SVG and animated GIF output are not exposed on FairStack yet

What is GPT Image 2.6 Sunburst best for?

Character reference sheets Storyboard sheets Detailed editorial and cinematic stills

How much does GPT Image 2.6 Sunburst cost?

Metric
FairStack
Details
medium · 1:1(default)
$0.052164/image
Billed per image, 20% platform fee included.
low · 1:1
$0.029628/image
Billed per image, 20% platform fee included.
low · 16:9
$0.023904/image
Billed per image, 20% platform fee included.
low · 9:16
$0.023904/image
Billed per image, 20% platform fee included.
medium · 16:9
$0.040752/image
Billed per image, 20% platform fee included.
medium · 9:16
$0.040752/image
Billed per image, 20% platform fee included.
high · 1:1
$0.063216/image
Billed per image, 20% platform fee included.
high · 16:9
$0.049392/image
Billed per image, 20% platform fee included.
high · 9:16
$0.049392/image
Billed per image, 20% platform fee included.
xhigh · 1:1
$0.112392/image
Billed per image, 20% platform fee included.
xhigh · 16:9
$0.088524/image
Billed per image, 20% platform fee included.
xhigh · 9:16
$0.088524/image
Billed per image, 20% platform fee included.
max · 1:1
$0.252864/image
Billed per image, 20% platform fee included.
max · 16:9
$0.197568/image
Billed per image, 20% platform fee included.
max · 9:16
$0.197568/image
Billed per image, 20% platform fee included.
Subscription
None
Pay per generation only

How does GPT Image 2.6 Sunburst perform across capabilities?

From the FR-1296 bake-off on FairStack (2026-11-06, medium 1024x1024, 9 prompts drawn from real internal usage). Judgement-based, not a calibrated benchmark.

photorealism
86%
layout precision
82%
text rendering
92%
identity consistency
55%
style adherence
84%
fine detail
86%
multi subject
78%
lighting complexity
82%
storytelling
80%

How do I use the GPT Image 2.6 Sunburst API?

curl
curl -X POST https://api.fairstack.ai/v1/generations/image \
  -H "Authorization: Bearer $FAIRSTACK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-image-2-6-sunburst-t2i",
    "input": {
      "prompt": "Your prompt here"
    }
  }'
Python
import os
import requests

response = requests.post(
    "https://api.fairstack.ai/v1/generations/image",
    headers={
        "Authorization": f"Bearer {os.environ['FAIRSTACK_API_KEY']}",
        "Content-Type": "application/json",
    },
    json={
      "model": "gpt-image-2-6-sunburst-t2i",
      "input": {
        "prompt": "Your prompt here"
      }
    },
)

result = response.json()
print(result["data"])
Node.js
const response = await fetch("https://api.fairstack.ai/v1/generations/image", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.FAIRSTACK_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "gpt-image-2-6-sunburst-t2i",
    "input": {
      "prompt": "Your prompt here"
    }
  }),
});

const result = await response.json();
console.log(result.data);

What parameters does GPT Image 2.6 Sunburst support?

Parameter
Type
Default
Details
image_size
enum
1024x1024
Options: 1024x1024, 1536x1024, 1024x1536
quality
enum
medium
Options: low, medium, high, xhigh, max
num_images
integer
1
Range: 1–4
output_format
enum
png
Options: jpeg, png, webp
background
enum
opaque
Options: auto, transparent, opaque

Frequently Asked Questions

How much does GPT Image 2.6 Sunburst cost?

GPT Image 2.6 Sunburst costs $0.052164/image (medium, 1:1) on FairStack as of 2026-11-10. This price includes FairStack's transparent 20% margin on infrastructure cost. No subscription or monthly fee — you pay per generation only. Minimum deposit is $1.

What is GPT Image 2.6 Sunburst and what is it best for?

GPT Image 2.6 Sunburst is the detail-focused model OpenAI shipped with Images 2.6 on 2026-11-04. In our bake-off it produced the most complete character reference sheet of the four GPT Image 2.5/2.6 variants (five turnaround views, expressions, details and a labelled palette) and the strongest photoreal portrait lighting. It is slower than its 2.5 sibling: about 27 seconds for a medium 1024x1024 image versus about 17 seconds on GPT Image 2.5 Sunburst. 2.6 uses the same per-token rates as 2.5 but spends more tokens at the low and medium tiers (about 4.2x at low and 3.3x at medium); at high, xhigh and max the two versions cost the same. Requests run against OpenAI directly, with fal.ai wired as a same-model fallback. GPT Image 2.6 Sunburst is best for Character reference sheets, Storyboard sheets, Detailed editorial and cinematic stills. Available via FairStack's REST API with curl, Python, and Node.js SDKs.

Does GPT Image 2.6 Sunburst have an API?

Yes. GPT Image 2.6 Sunburst is available via FairStack's REST API at api.fairstack.ai. Send a POST request to /v1/generations/image with your API key, the model key, and an input object (input.prompt). Works with curl, Python requests, Node.js fetch, and any HTTP client. No SDK installation required.

How does GPT Image 2.6 Sunburst compare to other image models?

GPT Image 2.6 Sunburst excels at Character reference sheets, Storyboard sheets, Detailed editorial and cinematic stills. It is a text to image model priced at $0.052164/image (medium, 1:1) on FairStack. Key strengths: Most complete character and reference sheets in the GPT Image family, Rich lighting and skin texture on portraits. Compare all image models at fairstack.ai/models.

See how GPT Image 2.6 Sunburst compares

Side-by-side pricing comparisons with competitors

Start using GPT Image 2.6 Sunburst today

$0.052164/image (medium, 1:1). Full API access. No subscription.

Start Creating