What is a Large Language Model (LLM)?
A Large Language Model (LLM) is an artificial intelligence system trained on enormous datasets of text to understand and generate human-like language. Examples include OpenAI's GPT-4o/GPT-4.5, Anthropic's Claude, Google's Gemini, and Meta's Llama.
How LLMs Work
LLMs use transformer architecture to predict the most likely next token (word or word fragment) in a sequence. They are trained on billions of parameters using massive text corpora from the internet, books, and other sources.
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Frequently Asked Questions
What is the simple definition of Large Language Model?
A Large Language Model (LLM) is an artificial intelligence system trained on enormous datasets of text to understand and generate human-like language. Examples include OpenAI's GPT-4o/GPT-4.5, Anthropic's Claude, Google's Gemini, and Meta's Llama.
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How accurate is this definition?
This glossary is maintained by FaddyAI's team of AI experts, updated for 2026.