AI Coding Assistant

GitHub Copilot Review

by GitHub / Microsoft • AI Pair Programmer

★★★★★ 4.8/5
Updated: November 2026
12 min read
1.8M+ Users

개요

GitHub Copilot is the world's most widely adopted AI pair programmer, developed by GitHub in collaboration with OpenAI. Launched in June 2022, it has revolutionized how developers write code by providing intelligent, context-aware code completions directly in your IDE.

Powered by OpenAI Codex (a descendant of GPT-4 trained on billions of lines of code), Copilot doesn't just autocomplete single lines — it can suggest entire functions, generate boilerplate code, write tests, and even explain complex algorithms. With the addition of Copilot Chat, you now have a conversational AI assistant that understands your codebase and can answer questions, debug issues, and refactor code on demand.

Whether you're a seasoned developer looking to boost productivity or a beginner learning to code, GitHub Copilot has become an indispensable tool in the modern development workflow. It supports over 100 programming languages and integrates seamlessly with VS Code, JetBrains IDEs, Neovim, Visual Studio, and Xcode.

VS Code JetBrains IDEs Visual Studio Neovim Xcode Azure Data Studio

주요 기능

Intelligent Code Completion

Context-aware suggestions that understand your code patterns, variable names, and project structure. Suggests entire functions from comments or function signatures.

Copilot Chat

Conversational AI assistant integrated into your IDE. Ask questions about code, get explanations, request refactoring, or debug issues through natural language.

Code from Comments

Write a comment describing what you want, and Copilot generates the implementation. Perfect for quickly scaffolding new features or algorithms.

Multi-file Context

Understands your entire codebase, not just the current file. References related files, types, and functions to provide more accurate suggestions.

CLI Assistant

Copilot for CLI helps you remember command-line syntax, compose complex commands, and understand terminal output with AI-powered assistance.

PR Summaries

Automatically generates pull request descriptions and summaries, saving time on documentation and helping reviewers understand changes quickly.

🧪 Test Generation

Generate unit tests for your functions with a single command. Copilot understands testing frameworks and creates comprehensive test cases.

Security Scanning

Blocks suggestions that match known vulnerable patterns. Helps prevent common security issues like SQL injection and hardcoded credentials.

장단점

장점

  • Industry-leading code suggestion quality
  • Excellent IDE integration across all major editors
  • Copilot Chat provides conversational assistance
  • Supports 100+ programming languages
  • Free for verified students and open-source maintainers
  • Regular updates with new features
  • Strong security filtering for suggestions
  • Backed by GitHub/Microsoft resources
  • Works offline (cached suggestions)
  • Reduces time spent on boilerplate code

단점

  • Requires paid subscription ($10-19/month)
  • Privacy concerns — code sent to servers
  • Can suggest outdated or deprecated patterns
  • Sometimes generates incorrect code confidently
  • Heavy reliance may reduce learning
  • No on-premise option for enterprises
  • Context window limitations
  • Can slow down IDE on large files

가격 플랜

GitHub Copilot offers tiered pricing to accommodate individual developers, teams, and enterprises. Students and open-source maintainers get free access.

플랜 가격 기능 Best For
무료 $0 Full features for verified students, teachers, and OSS maintainers Students & Open Source
Individual $10/mo or $100/yr Code completions, Copilot Chat, CLI support, VS Code & JetBrains Solo developers
Business $19/user/mo All Individual features + Admin controls, policy management, audit logs Teams & Organizations
Enterprise $39/user/mo All Business features + Fine-tuned models, advanced security, SAML SSO Large enterprises

스크린샷 & 인터페이스

Explore GitHub Copilot's interface:

최상의 사용 사례

Rapid Prototyping

Quickly scaffold new features and MVPs

Boilerplate Reduction

Auto-generate repetitive code patterns

Learning New Languages

See idiomatic patterns while coding

🧪

Test Writing

Generate comprehensive test suites

Documentation

Auto-generate docs and comments

🐛

Debugging

Chat-based debugging assistance

최종 평가

4.8/5
Excellent

GitHub Copilot is the gold standard for AI coding assistants. Its deep integration with popular IDEs, extensive language support, and powerful Copilot Chat make it an indispensable tool for modern developers. While the subscription cost may deter some, the productivity gains typically justify the investment. Highly recommended for professional developers.

Code Quality
9.5
IDE Integration
9.8
기능
9.2
Value for Money
8.5
Privacy
7.0

자주 묻는 질문

Is GitHub Copilot free?
GitHub Copilot is free for verified students, teachers, and maintainers of popular open-source projects. For everyone else, it costs $10/month for individuals or $19/user/month for businesses. There's also a 30-day free trial available.
Is my code sent to GitHub's servers?
Yes, code snippets and context are sent to GitHub's servers to generate suggestions. For Business and Enterprise plans, you can configure data retention policies. GitHub states they don't use your code to train models (for Business/Enterprise tiers).
Which IDEs support GitHub Copilot?
GitHub Copilot supports VS Code, Visual Studio, JetBrains IDEs (IntelliJ, PyCharm, WebStorm, etc.), Neovim, Xcode, and Azure Data Studio. VS Code has the most feature-complete integration.
How accurate are Copilot's suggestions?
According to GitHub's studies, Copilot's suggestions are accepted about 30% of the time. The accuracy varies based on language, context, and how well-defined your code patterns are. It's most effective for common patterns and well-documented languages like Python and JavaScript.
Can Copilot write entire applications?
While Copilot excels at generating functions and code blocks, it's designed as an assistant rather than an autonomous coder. It works best when you provide clear context through comments, function signatures, and existing code patterns.
Is Copilot better than ChatGPT for coding?
For in-IDE coding assistance, Copilot is superior due to its seamless integration, real-time suggestions, and codebase awareness. ChatGPT (or Claude) is better for longer explanations, learning concepts, and complex debugging conversations outside your IDE.