An interactive simulation of a product used to test concepts, gather feedback, and demonstrate functionality before full development. Prototypes range from low-fidelity wireframes to high-fidelity interactive mockups. In Framer, prototypes become production sites—there's no separate prototype stage to recreate.

Agile is a collaborative product development approach that emphasizes short cycles, continuous improvement, and rapid response to changing requirements.

A development approach coined by Andrej Karpathy in which developers describe what they want in plain language—or even just a vibe—and rely on AI to write, iterate, and debug the code. Rather than authoring every line, the developer acts as director and reviewer, accepting or rejecting AI suggestions. Vibe coding lowers the barrier to building software and accelerates prototyping, but it requires careful review because AI-generated code can introduce subtle bugs or security issues.

A step beyond code completion, agentic coding lets an AI agent take multi-step actions—reading files, running tests, fixing errors, and committing changes—with the developer reviewing at checkpoints rather than writing every instruction. Tools like Claude Code and Cursor’s Composer operate in this mode. Agentic coding accelerates complex tasks but requires clear goals, sandboxing, and human review to avoid unintended side effects.

An AI model integrated into a developer’s editor that participates in the coding process like a human pair—suggesting next steps, flagging potential bugs, explaining unfamiliar APIs, and generating boilerplate. GitHub Copilot popularized the term. Unlike agentic tools, an AI pair programmer typically acts reactively as the developer types rather than planning multi-step tasks autonomously.