Cursor vs JetBrains AI Assistant
Cursor is best for AI-Native Development, while JetBrains AI Assistant targets JetBrains IDE Users. On our independent 100-point evaluation, Cursor scores 95/100 vs JetBrains AI Assistant's 90/100 — a 5-point gap reflecting measurable differences across ten capability dimensions.
Cursor
Quick Verdict
Cursor focuses on AI-Native Development and Code Refactoring and scores 95/100 in our independent evaluation. Cursor delivers the most polished AI-native IDE experience, with seamless integration of frontier models directly into the editing workflow.
JetBrains AI Assistant
Quick Verdict
JetBrains AI Assistant focuses on JetBrains IDE Users and Enterprise Development and scores 90/100 in our independent evaluation. JetBrains AI Assistant leverages the deep IDE integration and powerful static analysis capabilities of JetBrains tools.
📊 Visual Score Comparison
Side-by-side comparison of key performance metrics across six evaluation criteria
Technical Specifications
| Feature | Cursor | JetBrains AI Assistant |
|---|---|---|
| Core AI Model(s) | Supports frontier models including Claude Sonnet 4, OpenAI o3-pro, OpenAI GPT-4.1, Gemini 2.5 Pro, and Claude Opus 4. It also utilizes custom, purpose-built models for features like its native autocomplete, 'Tab'. | JetBrains AI Assistant uses a combination of models. It leverages its own proprietary LLM, Mellum, which is optimized for coding. It also provides access to third-party cloud models from providers like OpenAI, Google (Gemini 2.5 Pro), and Anthropic (Claude 3.7 Sonnet). |
| Context Window | The Pro plan provides access to maximum context windows. | The assistant is deeply integrated into the IDE and is context-aware, using information from the current project, including language versions, libraries, and related files, to generate more accurate prompts and suggestions. |
| Deployment Options | Cursor is a downloadable desktop application for macOS, Windows, and Linux. For teams, it offers an Enterprise plan with SAML/OIDC SSO and SCIM seat management for centralized administration. | The AI Assistant is available as a plugin within JetBrains' commercial IDEs. For enterprise customers with strict data privacy needs, an on-premises solution is available through IDE Services, which can run in an air-gapped environment using local models like Llama 3.1 via Hugging Face. |
| Offline Mode | Cursor has offline capabilities. A GitHub repository provides a guide for offline activation, enabling all features to work without a cloud or login requirement in airgapped systems. However, some users have reported difficulty using agent mode specifically in an offline setting. | Yes, JetBrains AI Assistant supports an offline mode. Users can connect to locally hosted models through tools like Ollama or LM Studio, allowing most AI features to function without an internet connection. However, some advanced features like multi-file edits are not available in offline mode. |
Core Features Comparison
Cursor Features
- AI-powered code completion and generation
- Multi-file code editing with AI chat
- Advanced code understanding and refactoring
- Integrated terminal and debugging tools
- Native Docker and deployment integration
- Multiple frontier model support (Claude, GPT-4, Gemini)
JetBrains AI Assistant Features
- Context-aware code completion within JetBrains IDEs
- Code explanation and documentation generation
- Refactoring suggestions based on best practices
- Integration with JetBrains' powerful development tools
Pricing & Value Analysis
| Aspect | Cursor | JetBrains AI Assistant |
|---|---|---|
| Entry Price | See pricing page | Free — Unlimited code completion |
| Pro Tier | — | $10/mo(Personal) or $20/mo (Commercial) AI Pro |
| Overall Score | 95/100 | 90/100 |
| Best For | AI-Native Development, Code Refactoring, Multi-file Projects, Rapid Prototyping | JetBrains IDE Users, Enterprise Development, Code Refactoring |
| Detailed Pricing | View Cursor pricing | View JetBrains AI Assistant pricing |
Best Use Cases
Cursor Excels At
- Large-scale refactoring across multiple files with AI understanding the full codebase context
- Building complex features by describing functionality in natural language and letting AI generate the implementation
- Code reviews and debugging with AI analyzing relationships between files and suggesting improvements
JetBrains AI Assistant Excels At
- Automated commit message generation based on code changes and project context
- Complex refactoring operations with AI understanding of code dependencies and design patterns
- Code explanation and documentation for team knowledge sharing and onboarding new developers
Performance & Integration
| Category | Cursor | JetBrains AI Assistant | Winner |
|---|---|---|---|
| Overall Score | 95/100 | 90/100 | Cursor |
| IDE Support | Cursor is a standalone code editor that is a fork of VS Code. This allows users to import their exis… | Fully integrated with the suite of JetBrains IDEs, including IntelliJ IDEA, PyCharm, WebStorm, CLion… | Tie |
| Founded | 2022 | NaN | Tie |
| Community Channels | 2 channels | 3 channels | JetBrains AI Assistant |
Cursor vs JetBrains AI Assistant: Data-Driven Comparison
This section is auto-generated from the underlying data in Cursor's and JetBrains AI Assistant's published specifications — no marketing copy. Each row below contrasts a specific capability area using the fields we track in our scoring methodology.
Underlying AI models
Cursor: Supports frontier models including Claude Sonnet 4, OpenAI o3-pro, OpenAI GPT-4.1, Gemini 2.5 Pro, and Claude Opus 4. It also utilizes custo… JetBrains AI Assistant: JetBrains AI Assistant uses a combination of models. It leverages its own proprietary LLM, Mellum, which is optimized for coding. It also pr…
Context window handling
Cursor: The Pro plan provides access to maximum context windows. JetBrains AI Assistant: The assistant is deeply integrated into the IDE and is context-aware, using information from the current project, including language version…
Deployment & IDE footprint
Cursor: Cursor is a downloadable desktop application for macOS, Windows, and Linux. For teams, it offers an Enterprise plan with SAML/OIDC SSO and S… JetBrains AI Assistant: The AI Assistant is available as a plugin within JetBrains' commercial IDEs. For enterprise customers with strict data privacy needs, an on-…
Where each tool specializes
Cursor targets AI-Native Development and Multi-file Projects. JetBrains AI Assistant targets JetBrains IDE Users and Enterprise Development. This divergence matters when matching a tool to a team's primary workflow.
Overall scoring gap
Cursor scores 95/100 versus JetBrains AI Assistant's 90/100 in our ten-dimension evaluation. This reflects measurable coverage differences; read each criterion in the Technical Specifications table above.
Choose Cursor when AI-Native Development maps directly to your main workflow and the data points above lean in its favor.
Choose JetBrains AI Assistant when JetBrains IDE Users is the higher-priority capability for your team.
The Bottom Line
Cursor and JetBrains AI Assistant each serve different needs. Cursor scores higher (95/100 vs 90/100) and tends to excel in AI-Native Development and Code Refactoring. The right pick depends on your workflow, team size, and technical constraints.
Choose Cursor if: you prioritize AI-Native Development and Code Refactoring and want the higher-rated option (95/100 vs 90/100).
Choose JetBrains AI Assistant if: you prioritize JetBrains IDE Users and Enterprise Development and accept a slightly lower headline score for its specialized fit.
Get the full comparison wallchart — scores, features, and decision guide in one printable PDF.
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