AI Glossary
Plain-English definitions for AI terms such as tokens, context windows, RAG, fine-tuning, open-source AI, and AI APIs.
What Is a Large Language Model?
A large language model is an AI system trained to process and generate language-like outputs from text and other inputs.
What Is a Context Window?
A context window is the amount of input an AI model can consider at one time.
What Are Tokens in AI?
Tokens are pieces of text or data that AI systems process when reading or generating outputs.
What Is Multimodal AI?
Multimodal AI can process or generate more than one type of input or output, such as text, image, audio, or video.
What Is an AI Agent?
An AI agent is a system designed to take steps toward a goal, often using tools, memory, or workflows.
What Is RAG?
Retrieval-augmented generation is a method where an AI system retrieves external information before generating an answer.
What Is Open-Source AI?
Open-source AI generally refers to AI models, code, or tools that are released with permissions for public use, inspection, or modification.
What Is Fine-Tuning?
Fine-tuning adapts an existing model to a narrower task, style, or dataset.
What Is Prompt Engineering?
Prompt engineering is the practice of writing instructions that guide an AI system toward a useful output.
What Is an AI API?
An AI API lets software send requests to an AI model or tool and receive outputs programmatically.