What things are you using AI agents for?
I used to use Codex from OpenAi, to build things for me.
One of those were an expense manager app (Android apk, build in Dart), you know where you keep track of all of your daily expenses, and it shows you everything catagory wise, organised (for example, grocery, rent, electricity, gas, food, medical etc). The app also works in multiple devices, has data sync across different devices with Firebase for online authentication, has the ability to create multiple profiles/users..as well as join via invite code (in case there are multiple user making the expenses, like in a family or bachalors home).
Nowadays, I build nothing as I have ran out of subscription, lol.

Now, I just play around with local LLM's via LM studio & Ollama. I have a decent GPU (5060 Ti, 16 GB Vram), so most of the low to mid tier LLM
(is low to mid tier even an official catagory? I don't know, lets just call it that, for now), with not many Billion parameter (4B, 8B, 12B) runs without any bottlenecks.