# GPT Image 2.5 Sunburst

Model id on AIHubMix: `gpt-image-2.5-sunburst`
Create an API key: https://console.aihubmix.com/?utm_source=llms-agent&utm_medium=model-llms

> GPT Image 2.5 Sunburst is OpenAI's latest image model, capable of generating and editing images from text and image inputs. It is suitable for workflows that require extremely high editing precision. The model supports quality settings: low, medium, high, xhigh, max, and auto.

- Developer: OpenAI
- Input modalities: text, image
- Release date: 2026-09-08
- Pricing: per-generation — see https://aihubmix.com/model/gpt-image-2.5-sunburst

## Endpoints (base URL: https://aihubmix.com)

- `POST /ai/v1/images/generations` — image generation (`Authorization: Bearer $AIHUBMIX_API_KEY`)
- `POST /v1/images/edits` — image generation (`Authorization: Bearer $AIHUBMIX_API_KEY`)
- `POST /v1/images/generations` — image generation (`Authorization: Bearer $AIHUBMIX_API_KEY`)

## Example

```bash
curl -s https://aihubmix.com/ai/v1/images/generations \
  -H "Authorization: Bearer $AIHUBMIX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-image-2.5-sunburst","prompt":"<your prompt>"}'
```

The response carries the output URL(s) directly. Full parameter list: see the schema link below. Generation costs real money — check the price on the model page first.

## Parameters (image endpoint)

| name | type | required | default | enum |
|---|---|---|---|---|
| `async` | boolean | no | false |  |
| `extra` | object,null | no |  |  |
| `image` | - | no |  |  |
| `images` | array,null | no |  |  |
| `mask` | string | no |  |  |
| `model` | string | yes |  |  |
| `n` | integer,null | no | 1 |  |
| `output_format` | string,null | no | "png" |  |
| `prompt` | string | yes |  |  |
| `size` | string,null | no |  |  |
| `webhook_events_filter` | array<string> | no |  |  |
| `webhook_url` | string | no |  |  |

Always-current parameter schema (authoritative, no auth):

```bash
curl -s https://aihubmix.com/call/schema/models/gpt-image-2.5-sunburst/endpoints
```

Output URLs are short-lived (roughly 30 minutes) and are downloaded with the same `Authorization: Bearer` header — fetch them promptly and store the content yourself.

## Errors

Error responses carry a `tid` (trace id) — include it when contacting support. Reference: https://docs.aihubmix.com/en/FAQs/HTTP-Codes.md

- 400 — parameter error; most are passed through from the upstream provider (media: `prompt_missing`, `size_not_supported`, `n_not_within_range`, …)
- 401 — missing `Authorization` header, or the key is invalid/expired
- 403 — `insufficient_user_quota` (top up at https://console.aihubmix.com/?utm_source=llms-agent&utm_medium=model-llms), account suspended, or this key is not allowed to use this model
- 429 — rate limited; back off and retry
- 503 — no channel can serve the request (check the model id and your access), or the upstream provider is throttling; retry later

## More

- Machine-readable endpoint schema (no auth): https://aihubmix.com/call/schema/models/gpt-image-2.5-sunburst/endpoints
- Async task guide: https://docs.aihubmix.com/en/api/async-tasks.md
- Model page: https://aihubmix.com/model/gpt-image-2.5-sunburst
- Try in browser: https://playground.aihubmix.com/?model=gpt-image-2.5-sunburst
- Compare with another model (human-facing, side-by-side specs and pricing): https://aihubmix.com/compare — pick this model and a peer there; published pairs are listed in https://aihubmix.com/sitemap-compare.xml, unpublished pairs 404 so do not compose the path by hand
- Generate runnable code programmatically: npm `@aihubmix/codegen` — the generator behind the Playground's "Get Code" (4 protocols × 7 languages, media endpoints included); the body it builds is the exact wire body the Playground sends, so generated snippets and real requests cannot diverge. `@aihubmix/model-schema` (npm) translates the parameter schema above into codegen input
- Site index for agents: https://aihubmix.com/llms.txt · Onboarding: https://aihubmix.com/agents.md

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Canonical version of this document: https://aihubmix.com/model/gpt-image-2.5-sunburst/llms.txt