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A full client-revision simulation that starts with one approved hero image and then applies a realistic sequence of notes requiring everything around the core subject to change while the subject itself remains locked—testing Gemini Nano Banana 2.1 under maximum commercial continuity pressure and documenting restoration thresholds.

A complete, field-tested production handoff checklist for images generated or edited with Gemini Nano Banana 2.1—covering identity verification, text and brand-mark status, platform specs, continuity across sets, revision-count risk, and the exact decision gates that determine when an asset should leave the generation environment.

A controlled campaign test examining whether Gemini Nano Banana 2.1 can hold product identity across multiple scenes, lighting conditions, and revision requests without losing the visual system.

Pretty AI images attract attention, but commercial creative work demands assets that survive briefs, revisions, and client approval. This article explains why Image Continuity exists and how it tests Gemini Nano Banana 2.1 against real production friction.