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Plain-language AI glossary

Term 18ModelsMeaning / context / connections

Models / Definition

Claude

Anthropic's family of AI models known for long context windows, strong reasoning, and instruction-following capabilities.

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01

MeaningThe one-sentence definition.

02

ContextHow the idea works in practice.

03

UsesWhere the concept becomes useful.

01 / Plain-language context

How Claude works.

Claude is Anthropic's model family for language, reasoning, coding, vision, and tool use. Anthropic currently lists Claude Fable 5, Claude Opus 5, Claude Sonnet 5, and Claude Haiku 4.5. The first three support context windows up to one million tokens, while Haiku is positioned for lower-latency work with a smaller context window.

Large context can simplify some document and code workflows, but it does not remove the need to select relevant evidence, evaluate outputs, and control cost. Choose among the tiers using a representative test set and the latency, context, and budget constraints of the actual job.

The lineup, platform availability, limits, and pricing can change. Check Anthropic's current model overview before committing to an implementation.

02 / Practical uses

Where it helps.

  1. 01Long document analysis (1M context)
  2. 02Code review and generation
  3. 03Complex reasoning and analysis
  4. 04AI-assisted development (Claude Code)
  5. 05Enterprise knowledge work
03 / Keep exploring
Large Language Model (LLM)A neural network trained on massive text datasets that can generate, understand, and reason about human language.GPTOpenAI's family of generative pre-trained transformer models for language, reasoning, coding, vision, and tool-using applications.Context WindowThe maximum amount of text (measured in tokens) that an AI model can process in a single request, including both input and output.MCP (Model Context Protocol)An open standard by Anthropic that provides a universal way for AI models to connect to external data sources and tools.