I was discussing LLMs with a non technical person on the plane yesterday. I was explaining why LLMs aren't good at math. And, he responded, no, chatgpt is great

I was discussing LLMs with a non technical person on the plane yesterday. I was explaining why LLMs aren't good at math. And, he responded, no, chatgpt is great a multivariate regression, etc. I'm using LLMs locally almost always and eschewing API backed LLMs like chatgpt. So I'm not very familiar with plugins, and I'm assuming chatgpt plugs into a backend when it detects a math problem. So it isn't the LLM doing the math but to the user it appears to be. Does anyone here know what LLM projects like llama.cpp or gemma.cpp support a plugin model? I'm interested in adding to the dungeons and dragons system I built using llama.cpp. Because it doesn't do math well, the combat mode is terrible. But I was writing my own layer to break out when combat mode occurs, and I'm wondering if there is a better way with some kind of plugin approach.