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OpenAI: GPT Image 2.5 SunburstNEW
openai/gpt-image-2.5-sunburstimages
GPT Image 2.5 Sunburst is an image generation and editing model from OpenAI, positioned as the precision-oriented tier of the GPT Image 2.5 series. It is suited to detailed creative work where editing accuracy matters more than generation speed, via the dedicated Images API.
Price
Released
Sep 9, 2026
Parameters
promptrequired, up to 20,000 charactersaspect_ratio1:11:21:32:12:33:13:23:44:34:55:49:1616:921:9backgroundtransparent · opaque · autoresolution1k2k4ksize512x15361536x5121024x10241024x17921792x10241024x20482048x10241152x20482048x11521360x20482048x13601024x30721536x20482048x15363072x10241280x25602560x12801632x20482048x16322880x12322048x20481280x38403840x12801920x38403840x19202576x32163216x25762160x38402880x28803840x21602496x33283328x24962368x35523552x23684480x1920imageimage-to-image (via /v1/images/edits)How to use via API
import base64
from openai import OpenAI
client = OpenAI(base_url="https://api.mixen.ai/v1", api_key="mxn-...")
img = client.images.generate(
model="openai/gpt-image-2.5-sunburst",
prompt="Милый кот-космонавт на Марсе",
size="512x1536", # либо extra_body={"aspect_ratio": "1:1", "resolution": "1k"}
n=1,
)
with open("image.png", "wb") as f:
f.write(base64.b64decode(img.data[0].b64_json))
# image-to-image: передать референс(ы) через multipart
edited = client.images.edit(
model="openai/gpt-image-2.5-sunburst",
image=open("photo.png", "rb"), # один или несколько референсов
prompt="Добавь неоновую вывеску на фасад, сохрани композицию",
)
with open("edited.png", "wb") as f:
f.write(base64.b64decode(edited.data[0].b64_json))
