AI-Generated Faces Are Harder Than Ever to Spot. Here Are 6 Science-Backed Ways to Identify Them

Kathmandu. Advances in artificial intelligence (AI) have reached a point where AI-generated faces, commonly known as deepfakes, can appear more realistic than genuine photographs. Just a few years ago, AI-generated images often contained obvious flaws such as extra fingers, distorted backgrounds, or mismatched earrings, making them relatively easy to identify. Today, however, AI image-generation technology has improved so significantly that those traditional clues are no longer reliable.

The rapid rise of realistic AI-generated images has also fueled online scams, disinformation, identity theft, and other forms of digital fraud. This raises an important question: How can you tell whether a face was created by AI?

A recent study published in the Proceedings of the National Academy of Sciences (PNAS) by researchers at the Australian National University (ANU) suggests that people can nearly double their ability to identify AI-generated faces after receiving brief training. Rather than searching for small visual mistakes, researchers recommend focusing on the overall characteristics of a face.

Based on scientific findings, here are six key traits that can help identify AI-generated faces.

6 Key Signs of an AI-Generated Face

AI image generators create faces by averaging the features of thousands of real people. As a result, AI-generated faces often appear "hyper-average." Experts with exceptional facial recognition abilities, known as super-recognizers, use this concept to distinguish AI-generated faces from real ones.

When examining an image, pay close attention to these six characteristics.

1. High Symmetry

No human face is perfectly symmetrical. Small differences naturally exist between the left and right sides of every person's face. AI-generated faces, however, tend to be unusually symmetrical. If a face appears almost perfectly balanced, it may have been created by AI.

2. Perfect Proportions

Because AI relies on averaged facial data, the eyes, nose, mouth, and other facial features often appear exceptionally well-proportioned. While real faces naturally vary, AI-generated faces frequently look mathematically balanced.

3. Unusually Attractive Appearance

Research has found that AI-generated faces generally appear more attractive than the average human face. If a profile picture looks almost unrealistically perfect, it is worth taking a closer look.

4. Lack of Distinctive Features

Every real person has unique characteristics that make their face recognizable. Small asymmetries, imperfections, scars, wrinkles, or other defining features contribute to an individual's identity. AI-generated faces, by contrast, often appear generic because they are based on averaged facial features rather than a real person's unique appearance.

5. Difficult to Remember

Although AI-generated faces may seem attractive at first glance, they are often surprisingly forgettable. Without distinctive features, these faces tend to blend and fail to leave a lasting impression.

6. Limited Facial Expression

Human faces naturally convey subtle emotions and expressions. While AI has become highly capable of generating realistic images, its faces often lack the depth, spontaneity, and emotional expressiveness found in genuine human portraits.

Additional Clues to Watch For

The six characteristics above are considered the most reliable indicators of AI-generated faces. However, smaller visual inconsistencies can still provide useful clues.

Look for uneven eyeglass frames, mismatched earrings, unnatural-looking teeth, distorted backgrounds, or unusual pixel patterns around the edges of the image. Skin that appears excessively smooth, glossy, or has an unnatural shine may also indicate that an image was generated by AI.

How to Improve Your Detection Skills

People interested in improving their ability to identify AI-generated faces can practice using websites such as WhichFaceIsReal.com and ThisPersonDoesNotExist.com. Regular practice can help sharpen the ability to distinguish real faces from AI-generated ones.

As AI technology continues to evolve, identifying deepfakes is becoming increasingly challenging. Not every convincing profile picture on the internet belongs to a real person, making it more important than ever to verify images and remain cautious online.

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