but one that is improving at an exponential pace and is developing capabilities to use itself with increasing reliability
It's easy to look at AI and draw a simple analogy to existing tools, because in most cases it is used as a tool, but the properties of intelligence and its ability to make things in the world is very unique and not comparable to any other tool.
All tools are useful because they require intelligence to use, and the tool magnifies the aim of intelligence. When the tools become intelligent themselves, certain recursive feedback loops will start to appear. Simply look at the quality of AI code outputs from 2 years ago compared to today.