GPT Image 2.5 API

OpenAI · model page

What GPT Image 2.5 is

On 8 September 2026, OpenAI introduced ChatGPT Images 2.5 and, for developers, two Image API models: GPT-Image-2.5 Flare for faster everyday generation and GPT-Image-2.5 Sunburst for higher-precision editing. OpenAI’s changelog lists both models for image generation and editing through the Image API.

fal lists hosted openai/gpt-image-2.5 endpoints. This page covers the GPT Image 2.5 family root. bnrouter does not invent a gateway model id or a price for this page.

Official announcement: Read OpenAI’s ChatGPT Images 2.5 post (8 September 2026)

Where developers can use it

OpenAI lists these official surfaces first. bnrouter is an optional OpenAI-compatible gateway in front of connected upstream accounts.

ChatGPT Images 2.5 in ChatGPT, as described in the 8 September 2026 post
OpenAI Image API models documented as GPT-Image-2.5 Flare and Sunburst
Hosted fal openai/gpt-image-2.5 endpoints
bnrouter, if the operator has connected an upstream that serves this model. The plaza may still show coming soon — confirm the id in the console or GET /v1/models.

How to call it through bnrouter

bnrouter is an OpenAI-compatible AI API gateway. Create an API key in the console, then send requests to the gateway base URL. Chat completions may not be the right request shape for image or video generation — see the Image & video API docs for the images format this site already documents. This repository does not yet record a gateway model id — copy the id shown in the console (or from GET /v1/models) into the model field. The plaza listing may still show coming soon.

curl

curl https://www.bnrouter.com/v1/chat/completions \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "YOUR_MODEL_ID",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Python (OpenAI SDK)

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://www.bnrouter.com/v1",
)

resp = client.chat.completions.create(
    model="YOUR_MODEL_ID",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

Replace YOUR_API_KEY and YOUR_MODEL_ID with values from the console. Do not assume a model id that is not listed there.

Pricing

See current price in console.

Questions

What is GPT Image 2.5?

OpenAI’s 8 September 2026 post introduces Images 2.5 and two developer models: Flare for faster everyday generation and Sunburst for higher-precision editing.

When did OpenAI release GPT Image 2.5?

OpenAI published the Images 2.5 announcement and the developer changelog entry on 8 September 2026.

How do I call GPT Image 2.5 through bnrouter?

Create a key in the console and confirm the model id there or via GET /v1/models. Chat completions may be a poor fit — see the Image & video API docs. The plaza may still show coming soon.

What model id should I send?

Use the identifier listed for this model in the console or returned by GET /v1/models. A gateway model id is not configured in this repository.

How much does the GPT Image 2.5 API cost on bnrouter?