---
title: Large Language Model (LLM) – AI Abstraction
canonical_url: https://ai-abstraction.com/glossary/large-language-model-llm/
description: The AI model that reads and writes language. It is the “brain” behind an AI agent, trained on huge amounts of text to understand requests and generate responses.
last_modified: 2026-07-29
---

Glossary

# Large Language Model (LLM)

The AI model that reads and writes language. It is the “brain” behind an AI agent, trained on huge amounts of text to understand requests and generate responses.

A large language model, or LLM, is the underlying technology that lets an AI agent understand what someone is asking and reply in plain language. Well-known examples include the models behind ChatGPT and Claude. AI Abstraction doesn’t build LLMs from scratch. It connects proven models, hosted through platforms like Amazon Bedrock and Google Vertex AI, to a business’s own data and workflows.

[See every term in the glossary](/glossary/)

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## About AI Abstraction

AI Abstraction designs, builds, hosts, and maintains AI agents and workflow automation for small and mid-sized businesses. Based in Ridgewood, NJ, serving the New York–New Jersey metro area and remotely nationwide. Call 551-246-4338 or visit https://ai-abstraction.com/contact/.