Claude 3.5 Sonnet vs Qwen 2.5 72B

Performance benchmarks + pricing comparison — updated April 2026

Claude 3.5 Sonnet

Anthropic

Previous generation Sonnet. Still excellent for coding tasks at the same price point.

Input$3.00/M
Output$15.00/M
Context200K tokens
Best ForCoding assistants, web development, data analysis
Benchmark72/100

Qwen 2.5 72B

Qwen

Qwen's open-weight 72B model. Strong Chinese and English performance at competitive pricing.

Input$0.400/M
Output$0.800/M
Context128K tokens
Best ForChinese-English applications, code generation, open-source preference

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioClaude 3.5 SonnetQwen 2.5 72BSavings
Small Script (1K lines) $0.62 $0.04 Qwen 2.5 72B saves $0.58 (94%)
Medium Feature (10K lines) $4.66 $0.30 Qwen 2.5 72B saves $4.36 (94%)
Large Project (50K lines) $23.29 $1.50 Qwen 2.5 72B saves $21.79 (94%)
Code Review (5K lines) $1.20 $0.09 Qwen 2.5 72B saves $1.11 (93%)

Verdict

Qwen 2.5 72B wins on both price and performance — $0.400/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models