OpenAIGPT-5.5 ProVSZ.ai (Zhipu AI)GLM-5.2
Our Take
Standardized reasoning and coding benchmarks are currently pending verification for one or both of these models. We recommend testing GPT-5.5 Pro and GLM-5.2 directly in their respective provider playgrounds to see which fits your specific prompt styles best.
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Benchmarks & Scores
Coding (swe-bench-pro)
N/Acomplex codebases, multi-file repositories, and architectural planning
Reasoning (gpqa-diamond)Winner (+5.0%)
96.2%graduate-level science QA
Cost & Context
Cost (per 1M tokens)
$67.50Input: $30.00 | Output: $180.00Context WindowLarger
1.05M tokensBenchmarks & Scores
Coding (swe-bench-pro)
62.1%complex codebases, multi-file repositories, and architectural planning
Reasoning (gpqa-diamond)
91.2%graduate-level science QA
Cost & Context
Cost (per 1M tokens)31.4x cheaper
$2.15Input: $1.40 | Output: $4.40Context Window
1.05M tokensFrequently Asked Questions about GPT-5.5 Pro vs GLM-5.2
GLM-5.2 is cheaper than GPT-5.5 Pro. GLM-5.2 has a blended cost of $2.15/1M tokens, which is about 31.4x cheaper than GPT-5.5 Pro at $67.50/1M tokens.
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