It’s damn near impossible to know an image is ai generated unless the metadata clearly states it, or it comes from a known generation domain.
A human may (or may think they can) be able to determine if something is AI, but it would be impossible to detect everything, even if they went so far as to train an algorithm to do so… which would kinda defeat the purpose.
It actually does say “We’ve Removed AI‑Generated Images” on the landing page of noai.duckduckgo.com
It’s damn near impossible to know an image is ai generated unless the metadata clearly states it, or it comes from a known generation domain.
A human may (or may think they can) be able to determine if something is AI, but it would be impossible to detect everything, even if they went so far as to train an algorithm to do so… which would kinda defeat the purpose.