JetBrains AI Assistant vs GitHub Copilot｜Which Should You Choose? A Thorough Comparison【2026 Edition】
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More and more AI-powered tools are available to support you while writing code. Among the most popular are JetBrains AI Assistant and GitHub Copilot. Both are excellent, but how do they differ? In this article, we compare the two in depth to help you figure out which one is right for you.
JetBrains AI Assistant is an AI assistant designed exclusively for JetBrains integrated development environments (IDEs) such as IntelliJ IDEA and PyCharm. In June 2026, "Junie Agent"—an autonomous code-writing feature—was officially released, strengthening its ability to understand entire projects and suggest code accordingly. For users of JetBrains IDEs, the deep integration with the IDE means it supports you with a complete grasp of your project's structure.
GitHub Copilot, on the other hand, is an AI coding assistance tool provided by GitHub that supports VS Code and many other editors. It boasts the world's largest user base with over 20 million users, and as of June 2026 it switched to a pay-as-you-go (credit-based) model. Its greatest strength is that it can be used across a wide range of development environments.
| Feature | JetBrains AI Assistant | GitHub Copilot |
|---|---|---|
| Supported Editors | JetBrains IDEs only (IntelliJ, PyCharm, etc.) | Wide support: VS Code, JetBrains, Vim, and more |
| Code Completion | ○ (context-aware) | ○ (unlimited, fast — under 500ms) |
| AI Chat | ○ | ○ |
| Autonomous Agent | ○ (Junie Agent, Claude Agent) | ○ (Agent Mode) |
| Test Generation | ○ | ○ |
| Commit Message Generation | ○ | ○ |
| Multi-file Editing | ○ (Junie excels here) | ○ |
| Terminal Operations | △ | ○ (Copilot CLI) |
| Free Plan | ○ (3 credits/month) | ○ (with limitations) |
JetBrains AI Assistant offers three tiers: AI Free (free, 3 credits/month), AI Pro ($10/month for individuals, $20/month for businesses), and AI Ultimate ($30/month for individuals, $60/month for businesses). One thing to note is that this is priced separately from the JetBrains IDE license, so you'll need to pay for both. However, if you already have the All Products Pack ($289/year), AI Pro is included at no extra cost, making it a great deal for existing JetBrains users.
GitHub Copilot offers Free, Pro ($10/month), Pro+ ($39/month), and Max ($100/month) plans, as well as Business ($19/user/month) and Enterprise ($39/user/month) plans for organizations. Since June 2026, it uses a credit-based system: Pro includes $15 worth of credits per month, and Pro+ includes $70 worth. Code completion is unlimited, but chat and agent features consume credits.
JetBrains AI Assistant excels in development using languages where JetBrains has strong expertise, such as Java and Kotlin. For large-scale project refactoring in particular, Junie Agent automatically proposes changes that span multiple files. On the SWE-bench Verified benchmark, it recorded a score of 53.6%, demonstrating high accuracy. Its deep IDE integration means suggestions are grounded in a thorough understanding of your project's structure.
GitHub Copilot's strength lies in its support for a wide range of languages and environments. Whether you're doing web development in VS Code or data analysis in Python, it works in virtually any environment. It also offers IP indemnification on business plans, making it easier to adopt in enterprise settings. Its agent capabilities can automate everything from branch creation to pull request submission, and its integration with GitHub is outstanding.
When using JetBrains AI Assistant, you get the sense that the AI blends naturally with the IDE's built-in features—such as code inspection and refactoring suggestions. Because it understands the full context of your project, you receive suggestions that align with your design philosophy rather than mere completions. The downside is that it only works within JetBrains IDEs, which may be inconvenient for developers who switch between multiple editors.
GitHub Copilot offers fast response times (under 500ms) and delivers a nearly identical experience regardless of which editor you use. Since code completion is unlimited, you can write freely without worrying about usage costs. With over 20 million users, there's a wealth of community knowledge available, making it easy to find solutions when you run into problems. That said, its level of integration within JetBrains IDEs does not quite match that of JetBrains AI.
You should choose JetBrains AI Assistant if you:
You should choose GitHub Copilot if you:
Both are excellent tools, but they point in different directions. If you're deeply embedded in the JetBrains ecosystem, JetBrains AI Assistant is the way to go; if you want flexibility and breadth, GitHub Copilot is the better choice. Since both offer free plans, the safest approach is to try each one and pick whichever fits your development style.
This article is a cross-post from AI Friends.
