EpochLex · Dictionary of the AI Era

Categories

EpochLex uses five broad editorial categories to make a fast-moving vocabulary easier to understand without pretending every entry fits into only one box.

Culture & Slang

Language AI creates around itself.

Informal, cultural, workplace, and internet-native expressions that describe behaviors or phenomena emerging around AI. Examples include AI Slop, Meat Proxy, and Vibe Coding.

Ways of Working

How people work with AI.

Terms describing collaboration patterns, prompting methods, and human-AI workflows such as Copilot, Few-Shot, Human-in-the-Loop, and Prompt Engineering.

Systems & Technical

How AI systems work.

Technical vocabulary for models, architectures, interfaces, and computational concepts including Agentic, Context Window, MCP, RAG, Token, and Tool Calling.

Risks & Governance

Where AI requires caution and accountability.

Terms connected to safety, security, governance, reliability, and organizational risk, such as AI Washing, Hallucination, Prompt Injection, and Shadow AI.

Organizations, Products & Models

The named entities readers encounter across the AI era.

Organizations, AI products, model families, and individual models whose names provide meaningful context for understanding AI terminology, technology, history, or culture. Inclusion is selective rather than an exhaustive vendor or release catalog.

Categories and entry types are different

Categories describe the area of AI-era language an entry helps explain. Entry types describe what the entry is: a general term, organization, product, model family, or individual model. Keeping those dimensions separate lets EpochLex distinguish, for example, the generic term Copilot from named products such as Microsoft Copilot and GitHub Copilot.

Why entries may appear in more than one category

AI language does not always respect neat boundaries. A term such as Vibe Coding can be both cultural slang and a way of working. EpochLex allows multiple categories when doing so better reflects how an entry is actually used.

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These collections are generated directly from the current EpochLex term data, so counts and entries update as the dictionary grows.

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