It's much, much, easier to run an LLM than to use a static or dynamic analyzer correctly. At the very least, the UI has improved massively with "AI".

Most people have no idea how hard it is to run static analysis on C/C++ code bases of any size. There are a lot of ways to do it wrong that eat a ton of memory/CPU time or start pruning things that are needed.

If you know what you're doing you can split the code up in smaller chunks where you can look with more depth in a timely fashion.