Two new models are in the image list: GPT Image 2.5 Flare and GPT Image 2.5 Sunburst.
How they differ
- Flare — faster generation. The everyday pick.
- Sunburst — same image quality, about twice as slow, tuned for edit precision. Reach for it when you are retouching or chasing fine detail.
They cost exactly the same; price follows the refinement level and size you pick.
Five refinement levels instead of three
GPT Image 2 had Low / Medium / High. 2.5 adds two more on top:
Low → Medium → High → Ultra → Max
Higher levels spend more compute on the image and cost more. At 1K that ranges from 1 to 27 Xins, and the panel shows the exact price for the shot before you run it.
Note: "High" on 2.5 and "High" on GPT Image 2 are not the same thing — each generation splits its levels by its own compute. For the best 2.5 output, pick Max.
16 reference images at once
Double GPT Image 2's eight. More room for character consistency, multi-image blends, and style references.
Both models also edit with references — just connect images to the generation node on the canvas.
Sizes and aspect ratios
1K / 2K / 4K. Each tier supports a different set of ratios (2K is the widest — it adds 21:9 and 9:21), and the panel only lists the ratios that tier can actually produce, so you can't pick one that won't come out.
Prompts up to 32,000 characters
GPT Image 2.5 accepts prompts up to 32,000 characters. Go over and you'll be told, instead of getting an image made from half your prompt.