Anthropic Claude Sonnet 5 VS Z.ai (Zhipu AI) GLM-5.2
Decision Recommendation
⚖️ Editorial Verdict: In our analysis, GLM-5.2 is the premium intelligence choice, scoring 1.1% higher on coding benchmarks. It also maintains strong cost efficiency. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Claude Sonnet 5 offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GLM-5.2 fully justifies the cost.
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Model Specs
Claude Sonnet 5
Benchmarks & Scores
Coding (swe-bench-pro)Winner (+1.1%)
63.2%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)
N/Agraduate-level science QA
Cost & Performance
Cost (per 1M tokens)
$4.00Input: $2.00 | Output: $10.00Context Window
1.05M tokensModel Specs
GLM-5.2
Benchmarks & Scores
Coding (swe-bench-pro)
62.1%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)
91.2%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)1.9x cheaper
$2.15Input: $1.40 | Output: $4.40Context Window
1.05M tokensFrequently Asked Questions about Claude Sonnet 5 vs GLM-5.2 comparison
GLM-5.2 is cheaper than Claude Sonnet 5. GLM-5.2 has a blended cost of $2.15/1M tokens, which is about 1.9x cheaper than Claude Sonnet 5 at $4.00/1M tokens.
Claude Sonnet 5 is better for coding tasks on this benchmark. It scores 63.2% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases) compared to GLM-5.2 which scores 62.1%.
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