JetBrains AI Assistant / Junie vs Supermaven: Side-by-Side Comparison 2026
JetBrains AI Assistant / Junie vs Supermaven comparison 2026. Side-by-side features, pricing & capabilities.
| Feature | JetBrains AI Assistant / Junie | Supermaven |
|---|---|---|
| Category | Extension | Extension |
| Starting Price | Free | Free |
| Model Family | Multi-model | GPT-based |
| Context Window | Not disclosed | 1M (Pro/Team) |
| Code Completion | ✓ | ✓ |
| Chat | ✓ | ✓ |
| Inline Editing | ✓ | ✗ |
| Agentic Mode | ✗ | ✗ |
| Multi-File Editing | ✓ | ✗ |
| Terminal Commands | ✓ | ✗ |
| Browser Use | ✗ | ✗ |
| Test Generation | ✓ | ✗ |
| Debugging | ✓ | ✗ |
| Refactoring | ✓ | ✗ |
| Code Review | ✓ | ✗ |
| PR Review | ✗ | ✗ |
| Documentation | ✓ | ✗ |
| Image to Code | ✗ | ✗ |
| Voice Input | ✗ | ✗ |
| App Generation | ✗ | ✗ |
| Deployment | ✗ | ✗ |
| Git Integration | ✓ | ✗ |
| Supported IDEs | All JetBrains IDEs (IntelliJ, PyCharm, WebStorm, GoLand, CLion, etc.) | VS Code, JetBrains, Neovim |
| Open Source | No | No |
Pricing verified 2026-02-05. JetBrains AI Assistant / Junie pricing | Supermaven pricing
Overview
JetBrains AI Assistant / Junie is editor extension from JetBrains. Supermaven is editor extension from Supermaven. Both tools are actively maintained as of 2026.
JetBrains AI Assistant / Junie: What You Get
JetBrains AI Assistant / Junie — AI Code Assistant from JetBrains. IDE-Integrated AI.
- Code completions
- AI chat
- Multi-file editing
- Terminal commands
- Test generation
- Debugging
- Code review
- Git integration
Pricing: Free / $10/mo. 4 plans available.
Models: GPT models, Claude models, Google models (via partner integrations)
Supermaven: What You Get
Supermaven — AI Code Assistant from Supermaven. Code Completion.
- Code completions
- AI chat
Pricing: Free / $10/mo. 3 plans available.
Models: GPT-4o-based proprietary model
Key Differences
- Category: JetBrains AI Assistant / Junie is editor extension, Supermaven is editor extension.
- Model family: JetBrains AI Assistant / Junie uses Multi-model; Supermaven uses GPT-based.
Which Should You Choose?
Choose JetBrains AI Assistant / Junie if you want AI coding assistance in your existing editor. Choose Supermaven if you want AI coding assistance in your existing editor. Both tools are strong options — the right choice depends on your workflow and priorities.
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