AI Glossary
Understand AI terminology with clear, beginner-friendly definitions
Artificial Intelligence (AI)
Computer systems designed to perform tasks that typically require human intelligence, such as learning, reasoning, problem-solving, and understanding language.
Machine Learning
A subset of AI where computer systems learn and improve from experience without being explicitly programmed, by identifying patterns in data.
ChatGPT
An AI chatbot created by OpenAI that can understand and generate human-like text, answer questions, write content, and assist with various tasks through conversation.
Prompt Engineering
The practice of designing and optimizing inputs (prompts) for AI systems to get the most accurate, useful, and relevant outputs.
Large Language Model (LLM)
An AI model trained on massive amounts of text data that can understand, generate, and work with human language at a sophisticated level.
Generative AI
Artificial intelligence systems that can create new content—text, images, audio, video, or code—rather than just analyzing or classifying existing content.
Token
A unit of text that AI language models process—roughly equivalent to about 4 characters or 0.75 words in English. Tokens determine context limits and pricing.
Hallucination
When an AI generates information that sounds plausible but is actually incorrect, fabricated, or nonsensical—stating false facts with apparent confidence.