Well, what we could expect? It is a fucking Large Language Model. You're feeding it a very long multi-variable time series, it can't make any sense of it, but it is going to generate text.

If you are lucky, maybe it was finetuned to see a long comma-delimited sequence of values as a table and then emit a series of tool calls to generate some deterministic code to calculate a set of descriptive statistics that then will be close in the latent space to some hopefully current medical literature, and it will generate some things that makes sense and it is not absurdly wrong.

It is a fucking LLM, it is not 2001's HAL.