GPT Image 2.5 is OpenAI’s image model, released in September 2026. In ChatGPT it ships as ChatGPT Images 2.5. It follows prompts and reference photos more tightly than Images 2.0, keeps subjects stable across edits, and renders light and materials closer to a camera.
The API exposes two IDs: gpt-image-2.5-flare and gpt-image-2.5-sunburst. Emulsion is a studio workspace, so you pick Flare or Sunburst per job instead of locking the whole account to one model. Latency is down by up to 50% versus Images 2.0. That matters for campaign stills, product packs, fashion looks, and interiors that need a real revision loop — not a one-shot chat sketch.
Use GPT Image 2.5 when you need production output: 4K frames, opaque or transparent backgrounds, and a sheet with history. See the example frames, compare Flare and Sunburst, then get GPT Image 2.5 access.