Claude 3.5 Sonnet vs GLM-4-Plus

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

GLM-4-Plus

Zhipu AI

Zhipu AI's balanced model. Strong Chinese language understanding with competitive coding ability.

Input$0.700/M
Output$0.700/M
Context128K tokens
Best ForChinese applications, code generation, function calling

Cost Comparison by Scenario

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

ScenarioClaude 3.5 SonnetGLM-4-PlusSavings
Small Script (1K lines) $0.62 $0.05 GLM-4-Plus saves $0.57 (93%)
Medium Feature (10K lines) $4.66 $0.38 GLM-4-Plus saves $4.27 (92%)
Large Project (50K lines) $23.29 $1.92 GLM-4-Plus saves $21.36 (92%)
Code Review (5K lines) $1.20 $0.14 GLM-4-Plus saves $1.06 (88%)

Verdict

GLM-4-Plus wins on both price and performance — $0.700/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