They missed such an opportunity to name it "fail". It's like "file" but with "ai" in it.

But file(2) is already like that - my data files without headers are reported randomly as disk images, compressed archives or even executables for never-heard-of machines.

Other methods use heuristics to guess many filetypes and in the benchmark they show worse performance (in terms of precision). Assuming benchmarks are not biased, the fact that this approach uses AI heuristics instead of hard-coded heuristics shouldn't make it strictly worse.