What is LLM?
Also called: Large language model
The short answer
A large language model is an AI system trained on vast amounts of text to predict and generate language, including code, which powers chatbots and coding agents.
LLM, explained
LLMs do not look answers up by default; they generate likely text, which is why they can be confidently wrong and why grounding them in real sources matters.
Questions people ask about LLM
What is LLM?
A large language model is an AI system trained on vast amounts of text to predict and generate language, including code, which powers chatbots and coding agents.
Related terms
A hallucination is when an AI states something false with confidence, such as a function that does not exist, a wrong fact or an invented source.
TokensTokens are the chunks of text, often word fragments, that AI models read and write; usage, limits and pricing for AI services are measured in tokens.
Context windowThe context window is how much text an AI model can consider at once, including your instructions, the files it reads and the conversation so far.
AI agentAn AI agent is an AI system that pursues a goal over several steps, deciding what to do, using tools like a browser, terminal or APIs, and checking its own results.
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