Windsurf vs JetBrains AI Assistant
Windsurf is best for AI-Native Development, while JetBrains AI Assistant targets JetBrains IDE Users. On our independent 100-point evaluation, Windsurf scores 91/100 vs JetBrains AI Assistant's 90/100 — a 1-point gap reflecting measurable differences across ten capability dimensions.
Windsurf
Quick Verdict
Windsurf focuses on AI-Native Development and Large Codebases and scores 91/100 in our independent evaluation. Windsurf, now part of OpenAI following the acquisition of Codeium, competes in the Cursor-class editor category with an emphasis on agentic workflows.
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 | Windsurf | JetBrains AI Assistant |
|---|---|---|
| Core AI Model(s) | Primarily powered by OpenAI models (GPT-4.1, o3) with the Cascade agent for agentic workflows. Legacy Codeium models may still be used for low-latency autocomplete. | 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 | Supports large context windows via OpenAI's frontier models. Cascade agent maintains multi-file context for complex refactoring tasks. | 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 | Desktop application for macOS, Windows, and Linux. Enterprise plans available with SSO and team management features. | 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 | Limited offline capabilities; core AI features require cloud connectivity to OpenAI's infrastructure. | 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
Windsurf Features
- Cascade agent for autonomous multi-step coding tasks
- Agentic workflows for multi-step tasks
- Context-aware code completion and refactoring
- Multi-file edits and project-wide reasoning
- Native editor experience with low-latency responses
- Deep integration with OpenAI models
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 | Windsurf | 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 | 91/100 | 90/100 |
| Best For | AI-Native Development, Large Codebases, Agentic Workflows, OpenAI Ecosystem Users | JetBrains IDE Users, Enterprise Development, Code Refactoring |
| Detailed Pricing | View Windsurf pricing | View JetBrains AI Assistant pricing |
Best Use Cases
Windsurf Excels At
- Multi-file feature development with agent-guided refactors
- Complex codebase changes coordinated across modules
- Rapid iteration with in-editor AI for generation and fixes
- Teams invested in the OpenAI ecosystem seeking a native editor experience
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 | Windsurf | JetBrains AI Assistant | Winner |
|---|---|---|---|
| Overall Score | 91/100 | 90/100 | Windsurf |
| IDE Support | Windsurf is a standalone VS Code-based editor. Also offers extensions for VS Code, JetBrains IDEs, a… | 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 |
Windsurf vs JetBrains AI Assistant: Data-Driven Comparison
This section is auto-generated from the underlying data in Windsurf'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
Windsurf: Primarily powered by OpenAI models (GPT-4.1, o3) with the Cascade agent for agentic workflows. Legacy Codeium models may still be used for l… 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
Windsurf: Supports large context windows via OpenAI's frontier models. Cascade agent maintains multi-file context for complex refactoring tasks. 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
Windsurf: Desktop application for macOS, Windows, and Linux. Enterprise plans available with SSO and team management features. 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
Windsurf targets AI-Native Development and Large Codebases. JetBrains AI Assistant targets JetBrains IDE Users and Enterprise Development. This divergence matters when matching a tool to a team's primary workflow.
Choose Windsurf 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
Windsurf and JetBrains AI Assistant each serve different needs. Windsurf scores higher (91/100 vs 90/100) and tends to excel in AI-Native Development and Large Codebases. The right pick depends on your workflow, team size, and technical constraints.
Choose Windsurf if: you prioritize AI-Native Development and Large Codebases and want the higher-rated option (91/100 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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