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Model infoModelsSnapshot: 15 Oct 2026

OpenAI / GPT-IMAGE

GPT-Image-2.5 Sunburst

OpenAI image generation, vision model with developer-documented API access and version information.

availableClosed weightsImage generationVision
Official documentation (opens in a new tab)Reviewed 15 Oct 2026
7 of 18 specification fields collected
Context windowNot collectedAwaiting source review
Maximum outputNot collectedAwaiting source review
Input billingSee ratesOpenAI API
Output billingSee ratesPublished units and conditions below

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
Not collected
Maximum output
Not collected
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Streaming
Not collected
Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Architecture
Not collected
Languages
Not collected
Supported API routes
v1/batch, v1/images/generations, v1/images/editsSource for Supported API routes (opens in a new tab)
Snapshots and aliases
gpt-image-2.5-sunburst, gpt-image-2.5-sunburst-2026-09-08Source for Snapshots and aliases (opens in a new tab)

Aliases and pinned IDs listed by the developer. A snapshot date is not automatically the public release date.

Context caching
SupportedSource for Context caching (opens in a new tab)

Documented on at least one recorded endpoint. See Caching for host, lifecycle and billing restrictions.

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

API model ID
gpt-image-2.5-sunburst
Access
API account required. Model-specific permissions and rate limits apply.
Regions
Not collected

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 12 Oct 2026
CategoryUsageRateUnit
Text tokensInput1$5.001M tokens
Text tokensCached input1$1.251M tokens
Image tokensInput1$8.001M tokens
Image tokensCached input1$2.001M tokens
Image tokensOutput1$30.001M tokens

Rate conditions

  1. Base published rate. Check the model-card pricing conditions and the request modality.
Pricing source (opens in a new tab)

Data & enterprise terms

API data controls and retention depend on endpoint and account configuration; consult the linked provider policy.

Read the service policy (opens in a new tab)
API model ID
marketing-studio/image/sunburst
Access
Documented hosted generation route; workspace credentials, API balance and model access required. No generation submitted.
Regions
Not established
Authentication
Authorization: Key KEY_ID:KEY_SECRET; JSON requests from a server-side application.Source for Authentication (opens in a new tab)
Processing workflow
Asynchronous submission returns request_id and status_url. Poll for completed images; only queued work can be canceled.Source for Processing workflow (opens in a new tab)
Request quotas
Account- and model-specific concurrency, counting queued and processing requests. Dashboard limits are authoritative; current guide describes HTTP 400 on saturation and no standard rate-limit or Retry-After headers.Source for Request quotas (opens in a new tab)

The introductory blog advertises 20 concurrent requests after key creation. This is not assumed to be every account or model limit.

Safe request retries
Optional Idempotency-Key: 1–255 visible ASCII characters without whitespace. Same account, endpoint, body and webhook reuse the original request ID; mismatches return 422. Read status_url for current state.Source for Safe request retries (opens in a new tab)

Generation submissions only. Replays are not new generations and are not prompt caching; no expiry interval is established.

Pricing coverage
Published USD model tariffs; authenticated /estimate/{model-path} gives a configuration quote. Example credits/usd values in shared documentation are illustrative, not this model’s rate.Source for Pricing coverage (opens in a new tab)
Billing basis
Separate prepaid API balance; consumer subscriptions do not fund API use. Failed, moderated and successfully canceled queued generations are refunded.Source for Billing basis (opens in a new tab)

Generic documentation describes credits; current model pages publish USD rates. No fixed credit-to-dollar exchange is inferred.

API endpoint URL
POST https://api.higgsfield.ai/marketing-studio/image/sunburstSource for API endpoint URL (opens in a new tab)
Application name
Marketing Studio Image 2.5 SunburstSource for Application name (opens in a new tab)
Maximum prompt characters
5,000Source for Maximum prompt characters (opens in a new tab)

Required prompt: 1–5000 characters. Host-specific limit, not the native provider limit.

Output resolutions
1k, 2k, 4kSource for Output resolutions (opens in a new tab)

Default 2k.

Aspect ratios
auto, 1:1, 3:2, 2:3, 4:3, 3:4, 16:9, 9:16, 21:9Source for Aspect ratios (opens in a new tab)

Default auto; enhanced auto follows the selected preset.

Generation modes
low, medium, high, xhigh, maxSource for Generation modes (opens in a new tab)

Default high.

Reference guidance
Direct generation omits image_urls; editing accepts up to 16. Enhanced mode requires preset_id plus one product image and optionally one model image.Source for Reference guidance (opens in a new tab)
Preset catalog
GET /marketing-studio/image/presets?size=50 returns visible usable Ads presets. Follow cursor pagination and use the selected current UUID; preset IDs are not a fixed enum.Source for Preset catalog (opens in a new tab)
Preset enhancement billing
Direct and enhanced requests use identical token rates; no separate enhancement surcharge. Selected quality is preserved.Source for Preset enhancement billing (opens in a new tab)
Declared backend
GPT Image 2.5 SunburstSource for Declared backend (opens in a new tab)
Input file formats
JPEG, PNG, WebPSource for Input file formats (opens in a new tab)

Oversized supported images are normalized before rendering; exact byte ceiling not collected.

Output dimension controls
Direct auto uses square output in current production mappings; enhanced auto follows the preset. Resolution tiers do not independently specify exact pixel dimensions.Source for Output dimension controls (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 15 Oct 2026
CategoryUsageRateUnit
Modality token pricingText input1$5.001M text input tokens
CachingCached text input1$1.251M cached text input tokens
Modality token pricingText output1$10.001M text output tokens
Modality token pricingImage input1$8.001M image input tokens
CachingCached image input1$2.001M cached image input tokens
Modality token pricingImage output1$30.001M image output tokens

Rate conditions

  1. Initial charge is an estimate, reconciled with actual token usage at completion and standard credit rounding. Media workflow, not a general text-question quote.
Pricing source (opens in a new tab)

Data & enterprise terms

API content may be used for training unless the workspace opts out; processing can take 10 business days and is prospective. Enterprise agreements can differ. Request records remain while the account is active; generated files are available for at least seven days. Zero retention requires an eligible enterprise addendum. Partner/excluded-model policies can differ.

Read the service policy (opens in a new tab)

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

OpenAI API

gpt-image-2.5-sunburst
Documented
Support evidence (opens in a new tab)
How it works
Not collected

A cached rate is published, but modality-specific cache controls have not yet been verified. Text-generation TTL rules are not assumed for image, audio or realtime endpoints.

Minimum reusable input
Not collected
Lifetime & refresh
Not collected
How to enable it
Not collected
Usage fields
Not collected
Billing rules
Not collected
Limits & data boundaries
Not collected
Cache reads, writes & storage
ChargeApplies toRate / unit
Cached input1Text tokens$1.25 / 1M tokensPricing evidence (opens in a new tab)
Cached input1Image tokens$2.00 / 1M tokensPricing evidence (opens in a new tab)

Rate conditions

  1. Base published rate. Check the model-card pricing conditions and the request modality.

Observed 12 Oct 2026. Write rates and storage fees are different charges; use the billing rules above.

Caching reviewed 12 Oct 2026

Higgsfield API

marketing-studio/image/sunburst
Documented

Published cached text/image input tariffs. Technical eligibility and actual cache hits were not tested.

Support evidence (opens in a new tab)
How it works
Not collected

Provider publishes cache billing, but cache mechanism is not documented here.

Minimum reusable input
Not collected

No prompt-cache contract or discount established. Reusing a request ID or trained identity is not inference caching.

Lifetime & refresh
Not collected

No prompt-cache contract or discount established. Reusing a request ID or trained identity is not inference caching.

How to enable it
Not collected

No prompt-cache contract or discount established. Reusing a request ID or trained identity is not inference caching.

Usage fields
Not collected

No prompt-cache contract or discount established. Reusing a request ID or trained identity is not inference caching.

Billing rules
Cached text input USD 1.25/1M tokens; cached image input USD 2/1M tokens.Source for Billing rules (opens in a new tab)
Limits & data boundaries
Not collected

Minimum prefix length, cache lifetime and cross-request eligibility are not established by this pricing description.

Cache reads, writes & storage
ChargeApplies toRate / unit
Cached text input1Caching$1.25 / 1M cached text input tokensPricing evidence (opens in a new tab)
Cached image input1Caching$2.00 / 1M cached image input tokensPricing evidence (opens in a new tab)

Rate conditions

  1. Initial charge is an estimate, reconciled with actual token usage at completion and standard credit rounding. Media workflow, not a general text-question quote.

Observed 15 Oct 2026. Write rates and storage fees are different charges; use the billing rules above.

Caching reviewed 15 Oct 2026

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

Proprietary OpenAI release in the official hosted-model catalog. Explicit open-weight releases and unresolved routing aliases are excluded.

Classification evidence (opens in a new tab)

Sources reviewed