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Symposium 2024 Blog Posts

5 Telltale Signs That a Photo Is AI-generated

Based on the research and insights of Matthew Groh, Negar Kamali, Karyn Nakamura, Angelos Chatzimparmpas and Jessica Hullman; Kellogg School of Management at Northwestern University

An AI-generated image of a woman eating lunch. Errors in the image are circled.
For one, scour for details that defy the laws of physics, like in this image of a woman eating a burger and pizza with other AI artifacts and implausibilities. (Source: KelloggInsight)

While diffusion models, or artificial intelligence systems that create images from text prompts, are a simple way to make realistic-looking images, they still have a long way to go before they can churn out foolproof replicas of actual photographs. These tools leave digital artifacts and introduce implausible signs that they are being synthesized. Matt Groh and his colleagues have identified five categories of artifacts and implausibilities to help people tell the difference between real and AI-generated images: anatomical implausibilities, stylistic artifacts, functional implausibilities, violations of physics, and sociocultural implausibilities.