Spotting AI at a Glance: Lessons from the “Nano Banana Pro” Experiment

At first glance, the image looks convincing: a woman wearing an olive-green outer layer that sits somewhere between a classic field jacket and a cozy parka. The fabric folds and the overall drape appear surprisingly natural, which is exactly the kind of detail that can make an AI-generated photo feel “real” in a quick scroll.

But once you slow down and examine the clothing like you would in a product photo, the illusion starts to break. And that’s the key lesson here: AI images often nail broad textures and lighting, then stumble on practical construction details that real garments must obey. If you’re trying to recognize AI-generated images, zippers, snaps, collars, and seams are some of the most reliable places to look.

Start with the zipper. On the right side of the image, the zipper teeth fade out halfway down as if the hardware simply stops existing. On the left, the zipper teeth change in length and spacing, creating a pattern that wouldn’t happen with a real manufactured zipper. In real clothing, zipper teeth are consistent for a reason: the mechanism wouldn’t function otherwise.

Next, check the snap fasteners. Instead of clean, round openings you’d expect from typical snaps, the holes look oddly shaped—more like a “D” than a circle. That kind of warped geometry is a common giveaway in AI fashion images, where the system understands “there should be a snap here” but struggles to reproduce standard hardware accurately.

The collar adds another major red flag. On the right side, there’s a noticeable white fur trim. On the left side, that trim disappears completely. Even stranger, the collar fabric on the left seems to melt into the shoulder panels in a way that doesn’t align with how jackets are cut and sewn. The shape and structure of the collar section that is visible also feels illogical, as if the garment design changes depending on which part of the image you’re viewing.

The same type of problem shows up again in the black fleece jacket’s zipper. Something is obviously off: there are no teeth at all, the pull tab looks bent out of shape, and the zipper area morphs into fabric underneath—another classic AI slip-up where hardware transitions into texture without a clear boundary.

If you want a simple takeaway for spotting AI-generated photos, use this checklist: admire the overall realism, then immediately zoom in on functional clothing parts. Zippers should have consistent teeth and a believable track. Snaps should look like actual hardware, not abstract shapes. Collars and trims should match on both sides and follow logical garment construction. When those details fall apart, it’s often a strong sign the image wasn’t captured by a camera—even if the fabric looks flawless at first glance.