Powered by Claude Code
Industry-leading 72.7% SWE-bench accuracy. Claude Sonnet 4 delivers production-ready code with superior reasoning and 200K token context.
SWE-bench Verified: Claude Sonnet 4 scores 72.7% on the industry-standard benchmark for autonomous software engineering, substantially outperforming GPT-4.1 (54.6%) and Gemini 2.5 Pro (63.2%). With parallel processing, accuracy reaches 80.2%, setting new industry standards.
Claude Sonnet 4 Capabilities
Claude analyzes entire codebases, understanding architecture, patterns, and conventions to write idiomatic code.
Generate production-ready code with proper error handling, edge cases, and best practices built-in.
Multi-step reasoning for complex problems, breaking down tasks into logical implementation steps.
Comprehensive documentation with clear comments, README updates, and API documentation.
Understands and follows your testing patterns, creating tests when requested for comprehensive coverage.
Optimized for speed with parallel processing and efficient resource utilization.
| Feature | Claude Sonnet 4 | Other Models |
|---|---|---|
| Context Window | 200K tokens | 8-32K tokens |
| SWE-bench Score | 72.7% | 27-63% |
| Bug Detection | Excellent | Moderate |
| Refactoring Quality | Production-ready | Requires review |
| Test Generation | Comprehensive | Basic |
Advanced Development Features
Claude Sonnet 4 can analyze and understand relationships between multiple files, ensuring consistent code across your entire project.
- Cross-file dependency tracking
- Import/export management
- Type consistency across modules
Beyond simple code generation, Claude Sonnet 4 can refactor existing code while maintaining functionality and improving quality.
- Performance optimizations
- Code style standardization
- Technical debt reduction
Claude Sonnet 4 is trained to identify and prevent common security vulnerabilities in generated code.
- SQL injection prevention
- XSS protection
- Secure API implementations
Deep understanding of modern frameworks and their best practices, ensuring idiomatic code generation.
- React, Vue, Angular patterns
- Node.js, Python, Go idioms
- Database optimization
Experience Claude Sonnet 4 Excellence
Start generating production-ready code with 72.7% SWE-bench accuracy