AI Series Part 1: What is a Large Language Model (LLM)?

What is a Large Language Model? A Large Language Model (LLM) is a type of AI system trained on massive amounts of text data to understand and generate human language. Think of it as a very sophisticated autocomplete — but one that can write essays, answer questions, summarize documents, write code, and hold conversations. Examples you’ve probably already used: ChatGPT (OpenAI) Claude (Anthropic) Gemini (Google) LLaMA (Meta) These are all LLMs — each with different architectures, training data, and capabilities, but all built on the same core idea. ...

July 5, 2026 · 4 min · 686 words · Sanket