Image
Nano Banana 2.1 vs. GPT Image 2.6 for targeted edits
Compare localized image edits for precision and reproducibility.
Define the editable object
Name the object, the exact change, and the details that must remain. Use the same reference, crop, and output settings.
Repeat the test
Run the same job more than once and record accidental changes. Use the billed cost and pass rate to estimate recurring edits.
Test prompt
Change only the subject’s coat from gray to cobalt blue. Preserve trousers, shoes, pose, backdrop, crop, and shadows.