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What’s new in ChatGPT Images 2.5, and how do the Sketch and Templates features work?

By Adam Neely · 2026-09-23 · 8 min
Quick answer: Images 2.5 focuses on faster generation and controlled revisions that preserve the parts of an image you already like.

Images 2.5 focuses on faster generation and controlled revisions that preserve the parts of an image you already like.

  1. Type @Sketch, draw the rough placement of the main subject, text, and empty space, then add a short written description.
  2. Choose a Template for a known format such as a poster, flyer, product photo, or merch graphic; replace its content and set the final dimensions.
  3. Pin a comment to the exact area you want changed, describe only that edit, and inspect untouched details for drift.
  4. In the API, begin with Flare for previews and high-volume work; use Sunburst when a final result needs tighter control through repeated edits.
Good to know: Prompt sharing can make a workflow repeatable. Remove personal images, names, unpublished designs, and other private material before sharing.
Source: OpenAI
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