I find Siri is very good at recognising my words accurately. Better than Google, in my experience, but that could be due to differences in mic quality in the various devices. Where Siri sucks is at actually comprehending instructions beyond some fairly basic commands. "Here's something I looked up on the web" is it's default response to most of my outside-of-the-box queries.

It seems weird that we still have such a dumb Siri in a world where ChatGPT exists.