It’s not an image classifier. It’s an image hashing algorithm that does a server-side comparison to a secret corpus of hashes provided by the National Center fo

It’s not an image classifier. It’s an image hashing algorithm that does a server-side comparison to a secret corpus of hashes provided by the National Center for Missing and Exploited Children (or a similar body—I forget the details) and equivalent international organizations. Only hashes that appear in multiple countries’ databases are used.