Pick Cursor if you live in JavaScript/Python/Go and want AI-first defaults. Pick JetBrains AI if you live in JVM languages and need the existing IDE depth. That's the entire decision.
The 30-second comparison
| Cursor | JetBrains AI Assistant | |
|---|---|---|
| Base editor | VS Code fork | IntelliJ family (IntelliJ, PyCharm, WebStorm, Rider, etc.) |
| Languages | All (best on JS/TS/Python) | All (best on JVM, Python, JS) |
| Agentic multi-file | Yes (Cursor Agent) | Limited |
| Chat / inline edit | Yes — fast | Yes — slower |
| Debugger / profiler | Basic (inherits VS Code) | Best-in-class (JetBrains heritage) |
| Pricing | $20/mo | $10/mo add-on, $25/mo standalone |
When to pick Cursor
Cursor is a fork of VS Code rebuilt around AI. Tab completion, multi-line ghost text, inline edit (Cmd+K), full-codebase search, and agentic multi-file edits all feel native — not bolt-on.
The standout is Cursor Agent: hand off a task in the sidebar ("add tests for the User model"), and the agent reads the relevant files, makes the edits across them, runs tests, and reports back. That experience is genuinely better than anything JetBrains has shipped.
Best fits:
- JavaScript / TypeScript / Python / Go work
- Web/full-stack development
- Anyone already on VS Code
- Teams that want AI-first defaults
The tradeoff: it's a VS Code fork. If you depended on a JetBrains-specific feature (refactor across language boundaries, JVM profiler, Java code generators) — those don't exist in Cursor.
When to pick JetBrains AI
JetBrains' AI Assistant adds chat, inline edit, and code completion inside IntelliJ, PyCharm, WebStorm, Rider, and the other JetBrains IDEs. It's improved meaningfully in 2025-2026 — competitive on completion quality, decent on chat.
The reason to stick with JetBrains isn't the AI — it's everything else. Java/Kotlin/Scala refactoring, the profiler, the debugger, the build tool integration. None of that exists in Cursor.
Best fits:
- JVM developers (Java, Kotlin, Scala)
- C# / .NET developers (Rider)
- Anyone who depends on JetBrains-specific features
- Teams already paying for JetBrains licenses
The honest test
Spend a week in each on your real codebase. Cursor wins for most JS/Python developers; JetBrains AI wins for JVM developers. The model both tools use is largely the same (Claude/GPT under the hood) — the editor shell is what differs.
Verdict
If your code is web/script-heavy: Cursor. If your code is JVM/enterprise: JetBrains AI. For developers genuinely fluent in both ecosystems, dual-editor is a reasonable splurge at ~$30/mo combined.
For more coding agents, see our best coding agents 2026 post.