What is GitHub Copilot?
GitHub Copilot is an AI coding assistant, owned by GitHub (a Microsoft company), that suggests code as you type, answers coding questions in a chat, and can autonomously make multi-step changes in agent mode. Launched generally in June 2022, it works in editors like VS Code, Visual Studio, and JetBrains, plus on GitHub.com.
Why — the first-principles explanation
GitHub Copilot is a large language model wrapped in developer tools. The model was trained on huge amounts of public code and technical text, so it learned the patterns of how code is written. Copilot's job is to take the context you're working in and predict helpful code — turning that raw prediction ability into features developers can actually use.
Those features come in three main shapes. Code completion finishes your lines and blocks as you type, appearing as gray ghost text you accept with Tab. Copilot Chat is a conversation window where you ask questions ('why is this failing?', 'write a test for this') and get answers grounded in your code. Agent mode goes further: you give it a goal, and it plans, edits multiple files, runs commands, and iterates toward a working result — more like delegating a task than autocompleting a line.
Copilot lives where developers already work. It installs as an extension in editors like VS Code, Visual Studio, JetBrains IDEs, Neovim, and Xcode, and it also runs on GitHub.com, GitHub Mobile, and the command line. Under the hood it is multi-model as of 2026, letting you choose engines from OpenAI, Anthropic, and Google.
The key mental model: Copilot is not a search engine or a compiler. It is a probabilistic assistant that produces likely-correct code fast. That makes it a powerful accelerator for writing, understanding, and changing software — as long as a human keeps reviewing what it produces.
An example that makes it click
Picture a super-smart intern who sits beside you and has read almost every public coding project ever posted. As you type, they finish your sentences with working code. When you're stuck, you turn and ask them a question, and they explain the bug. And if you hand them a whole task — 'add a login page' — they'll go make the changes across several files and show you the result.
That intern is GitHub Copilot. They're fast and well-read, but they sometimes guess wrong, so you always double-check their work before shipping it.
Key facts
- GitHub Copilot is owned by GitHub, a Microsoft subsidiary; it reached general availability in June 2022.
- It offers three core capabilities: inline code completion, Copilot Chat, and agent mode.
- It works in VS Code, Visual Studio, JetBrains IDEs, Neovim, Xcode, and on GitHub.com, mobile, and the CLI.
- As of 2026-07 it is multi-model, with selectable engines from OpenAI, Anthropic, and Google.
- Plans range from Free ($0) to Pro ($10/month), Pro+ ($39), Max ($100), Business ($19/user), and Enterprise ($39/user).
The AI pair-programmer built into your editor.
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What is GitHub Copilot? It's an AI coding assistant made by GitHub, which is owned by Microsoft. Think of it as a very well-read partner built into your code editor. It does three main things. First, code completion: as you type, it suggests the next lines as gray ghost text, and you press Tab to accept. Second, chat: you can ask it questions about your code — why something's broken, or how to write a test — and it answers using your actual project as context. Third, agent mode: you hand it a whole task, like 'add a login page,' and it plans the work, edits multiple files, runs commands, and iterates until it's done. Copilot lives right where you already code — VS Code, Visual Studio, JetBrains, and even on GitHub's website and mobile app. Under the hood, as of 2026, you can pick which AI model powers it: OpenAI, Anthropic, or Google. It launched broadly back in 2022 and now has plans from free all the way up to a hundred dollars a month. The one rule that never changes: Copilot writes likely-correct code fast, but you're still the reviewer.
What authoritative sources say
People also ask
Who makes GitHub Copilot?
GitHub, which has been a Microsoft subsidiary since 2018. It first launched as a preview in 2021 and became generally available in 2022.
What can Copilot actually do?
Complete code as you type, answer questions about your code in chat, and autonomously make multi-step changes across files in agent mode.
Where can I use it?
In editors like VS Code, Visual Studio, JetBrains, Neovim, and Xcode, plus GitHub.com, GitHub Mobile, and the command line.
Is it the same as ChatGPT?
No. Copilot is a coding-focused product built into your development tools. It can use models from OpenAI and others, but it's specialized for software work.