# GPT-Image-2.5 Sunburst

GPT-Image-2.5 Sunburst is an OpenAI image-generation model released Sep 8, 2026; OpenAI's newest image-generation model in our dataset is GPT-Image-2.5 Flare. Proprietary, API access only. OpenAI's most capable image generation and editing model, released Sep 8, 2026, and #1 on the LMArena text-to-image snapshot we cite. Verified against vendor sources on Oct 26, 2026.

Last verified: 2026-10-26 · Evidence: Reported · Canonical: https://theagenticweekly.com/models/gpt-image-2-5-sunburst · JSON: https://theagenticweekly.com/api/models/gpt-image-2-5-sunburst

## Key facts

| Fact | Value | Source |
|---|---|---|
| Vendor | OpenAI |  |
| Released | Sep 8, 2026 | https://developers.openai.com/api/docs/changelog |
| API id | `gpt-image-2.5-sunburst` | https://developers.openai.com/api/docs/models/gpt-image-2.5-sunburst |
| Output | image | https://developers.openai.com/api/docs/models/gpt-image-2.5-sunburst |
| Licence | Proprietary (API) | https://developers.openai.com/api/docs/models/gpt-image-2.5-sunburst |
| Pricing | $5 in / $30 out per 1M tokens. Billed in tokens, not per image: text input $5, image input $8, image output $30 per 1M tokens. Cost per image depends on size, quality and references. | https://developers.openai.com/api/docs/models/gpt-image-2.5-sunburst |

## Vendor claims and neutral signals

- Neutral signal: #1 on LMArena Text-to-Image in the Oct 7, 2026 snapshot (score marked preliminary).

## What we tested

Nothing yet. We have not run GPT-Image-2.5 Sunburst ourselves, so every fact here is Reported from the sources below.

## Not verified, left out

- The sibling GPT-Image-2.5 Flare (fast) is ranked #2 on the same leaderboard; its specifications were not captured.

## Sources

- [OpenAI model page](https://developers.openai.com/api/docs/models/gpt-image-2.5-sunburst)
- [OpenAI API changelog](https://developers.openai.com/api/docs/changelog)
- [OpenAI announcement](https://openai.com/index/introducing-chatgpt-images-2-5/)
- [LMArena Text-to-Image](https://arena.ai/leaderboard/text-to-image)

Data licence: CC BY 4.0. Data: Agentic Weekly (https://theagenticweekly.com), CC BY 4.0.