Claude 3.7 Sonnet vs DeepSeek-V3

A direct, empirical evaluation of Claude 3.7 Sonnet (Anthropic) against DeepSeek-V3 (DeepSeek-AI).

Claude 3.7 Sonnet

Developed by Anthropic · Proprietary parameters

Enterprise software engineering, full-repo refactoring, and agentic workflows.

DeepSeek-V3

Developed by DeepSeek-AI · 671B parameters

Cost-effective high-throughput general reasoning and bilingual generation.

Metric Claude 3.7 Sonnet DeepSeek-V3
SWE-bench Verified 70.3% 49.2%
MMLU-Pro 82.1% 75.9%
MATH-500 96.2% 90.2%
Context Window 200,000 tokens 128,000 tokens
Input Pricing (per 1M) $3.00 $0.14
Output Pricing (per 1M) $15.00 $0.28