Claude 3.7 Sonnet vs Claude Sonnet 5.5
A direct, empirical evaluation of Claude 3.7 Sonnet (Anthropic) against Claude Sonnet 5.5 (Anthropic).
Claude 3.7 Sonnet
Developed by Anthropic · Proprietary parameters
Enterprise software engineering, full-repo refactoring, and agentic workflows.
Claude Sonnet 5.5
Developed by Anthropic · Proprietary Frontier Dynamic Hybrid Reasoner parameters
Terminal-Bench 4.0 execution (70.6%), SWE-bench Verified coding (82.4%), GitHub Copilot multi-file edits, and low-latency autonomous agentic coding at $2/$10 pricing.
| Metric | Claude 3.7 Sonnet | Claude Sonnet 5.5 |
|---|---|---|
| SWE-bench Verified | 70.3% | 82.4% |
| MMLU-Pro | 82.1% | 88.4% |
| MATH-500 | 96.2% | 95.2% |
| Context Window | 200,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $3.00 | $2.00 |
| Output Pricing (per 1M) | $15.00 | $10.00 |