Decoder. plain-English AI glossary

Copilot

● Core

An AI that rides along as you work, suggesting the next line or block for you to accept or reject.

Think of it like

A knowledgeable passenger reading you the next turn — you’re still driving, they’re just calling it out.

Example

You start typing a function to parse a date; the copilot greys in the whole body, and you press Tab to accept.

How it actually works

The copilot pattern keeps the human in the driver’s seat: the model proposes, you dispose, one suggestion at a time. It became the default way AI entered coding and then writing, because low autonomy makes it safe and easy to trust. It is now often a stepping stone to more agentic modes, where the same underlying model stops waiting for you to accept each step.

For product teams

The gateway drug for AI assistance — helpful precisely because it never acts without you.

For engineers

A low-autonomy assistant that proposes inline completions for human acceptance rather than executing autonomously.

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