magika - file type detection

https://github.com/google/magika
https://opensource.googleblog.com/2024/02/magika-ai-powered-fast-and-efficient-file-type-identification.html

Magika is a novel AI-powered file type detection tool that relies on the recent advance of deep learning to provide accurate detection. Under the hood, Magika employs a custom, highly optimized model that only weighs about a few MBs, and enables precise file identification within milliseconds, even when running on a single CPU. Magika has been trained and evaluated on a dataset of ~100M samples across 200+ content types (covering both binary and textual file formats), and it achieves an average ~99% accuracy on our test set.

An interesting-looking successor to libmagic