AI Glossary

Plain-English definitions for the artificial intelligence terms that appear in AI news, product updates, and research.

Artificial Intelligence

Software that performs tasks usually associated with human reasoning, language, perception, prediction, or decision-making.

Machine Learning

A method where systems learn patterns from data instead of following only hand-written rules.

Large Language Model

An AI model trained on large amounts of text to predict and generate language, answer questions, summarize, and assist with tasks.

Generative AI

AI that creates new content such as text, images, audio, video, code, or structured data from prompts.

AI Agent

An AI system designed to pursue a goal through multiple steps, often using tools, web browsing, files, or APIs.

RAG

Retrieval-augmented generation, a technique that lets an AI answer using information retrieved from documents, databases, or websites.

Multimodal AI

AI that can work across multiple input or output types, such as text, images, audio, video, and code.

Token

A small unit of text, such as part of a word, that language models process when reading or generating content.

Fine-Tuning

Additional model training on a specific dataset to improve behavior for a task, domain, or style.

Inference

The process of running a trained AI model to produce an answer, prediction, or generated output.

Hallucination

When an AI system produces an answer that sounds confident but is unsupported, inaccurate, or invented.

Responsible AI

Practices focused on safety, fairness, privacy, transparency, accountability, and human oversight in AI systems.

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