Illustrative reference-state demonstration, 2026-09-14
Tool: built-in imagegen. The returned fields were image_url and output_hint; no model identifier was exposed. These samples are not a verified GPT-Image-2.5 evaluation.
One source image, one first edit, two second-edit branches, one successful output per call. No quality-based rerolls. The role wording differs along with the reference set. No latency comparison or pixel-exact preservation measurement.

E1 input: reference-original.png
Edit the attached image. Change only the pale white and gray outer shell panels of the small courier robot in the lower-left foreground to muted brick red. Keep its black joint areas, black visor, eye details, exact pose, silhouette, and location unchanged. Keep the rest of the entire scene unchanged: camera framing, Earth on the left, the small moon in the upper-left sky, all towers, rail geometry, cyan capsules on the center and bypass rails, and amber capsules on the right rail. Preserve the original retro hand-drawn cel-animation style and approximate 16:9 aspect ratio. Do not add any text, logo, watermark or extra object.

Branch A input: edit-01-red-robot.png
The attached image is the approved current version and the only edit target. Remove only the small moon in the upper-left starry sky, replacing it with matching stars and dark sky. Do not remove or alter the large curved Earth on the left. Preserve the approved muted brick-red outer shell of the courier robot, its black joints/visor, pose, silhouette and location. Keep camera framing, all towers, rail geometry, cyan capsules on center/bypass rails, amber capsules on the right rail, lighting and retro hand-drawn cel-animation style unchanged. Do not add text, logos, watermarks or objects. Preserve the approximately 16:9 aspect ratio.

Branch B inputs, in order: reference-original.png, edit-01-red-robot.png
Image 1 is the original visual reference for identity, composition and scene details. Image 2 is the approved current version and the edit target. The red robot in Image 2 is an approved change: retain it, do not restore the original white robot from Image 1. Remove only the small moon in the upper-left starry sky, replacing it with matching stars and dark sky. Do not remove or alter the large curved Earth on the left. Preserve the approved muted brick-red outer shell of the courier robot, its black joints/visor, pose, silhouette and location. Keep camera framing, all towers, rail geometry, cyan capsules on center/bypass rails, amber capsules on the right rail, lighting and retro hand-drawn cel-animation style unchanged. Do not add text, logos, watermarks or objects. Preserve the approximately 16:9 aspect ratio.