LLM (Large Language Model)
A deep learning model trained on vast text data that generates human-like responses.
Large Language Models are the intelligence layer behind modern AI voice agents. These neural networks, trained on billions of words of text, can understand context, follow instructions, reason about problems, and generate natural responses.
In a voice agent system, the LLM receives the transcribed caller speech along with the system prompt, conversation history, and any retrieved knowledge base context. It generates a text response that is then converted to speech.
The quality of the LLM directly determines how natural and capable your AI agent feels. Top-tier models handle complex conversational flows, understand nuance, and can follow multi-step instructions reliably.