Claude

Claude is the family of AI models made by AnthropicThe AI company that makes Claude. Founded by former OpenAI researchers with a focus on AI safety, and the developer of the Model Context Protocol (MCP)., and the name of the apps people use them through. The current generation is Claude 5: Haiku for fast, inexpensive work, Sonnet as the everyday model, Opus above it, and Fable at the top.

You can use Claude in a chat window at claude.ai or in the desktop and mobile apps, in your terminal through Claude CodeAnthropic's agentic coding tool. Runs in your terminal, reads files, writes code, and executes commands directly in your development environment., in your browser through Claude for Chrome, or inside your own software through Anthropic’s APIAn API (Application Programming Interface) is the defined way one piece of software talks to another — the set of requests a system accepts and the answers it gives back, so programs can use it without a person clicking through its screens.. Connectors built on the Model Context Protocol (MCP)APIs define how software communicates with software. MCPs (Model Context Protocol) let AI models connect to tools directly — no custom integration code needed. let Claude read from and act in other systems, such as your directory, ticketing system, or file storage, within the permissions you give it.

Claude is the model Macktez uses every day. In our experience it is the strongest of the major models for complex reasoning, long documents, code, and agentic work, where the model takes real actions rather than only answering questions. Our University guides cover how AI models work and how we use Claude in practice.