Chatbot is the only one I agree with (human in the loop).

Agents are essentially the chatbot, but without the human in the loop. Chatbot without human in the loop is a slop factory. Things like "multi-agent systems" are a clever ploy to get you to burn tokens and ideally justify all this madness.

Copilot/completion does not work in business terms for me. It looks like it works and it might feel like it's working in some localized technical sense, but it does not actually work on strategic timescales with complex domains in such a way that a customer would eventually be willing to pay you money for the results. The hypothesis that work/jobs will be created due to sloppy AI is proving itself out very quickly. I think "completion" tools like classic IntelliSense are still at the peak of efficiency.

Chatbot in many environment simply doesn't work, because we won't let them and if we did, they'd be agents. Here I'm mostly thinking in terms of things like customer service chats. A chatbot that can't reach into other systems are essentially only useful for role playing.

The copilot/completion thing also doesn't work for me. I have no doubt that a lot of developers are having a lot of benefits from the coding LLMs, but I can't make them work.

I think one glaring obvious missing kind of AI is medical image recognition, which is already deployed and working in many scenarios.