GLM-5.2 vs GPT-5.5
GLM-5.2 (Z.ai (Zhipu AI)) and GPT-5.5 (OpenAI) compared on benchmarks, pricing, context window, and use-case rankings.
- GLM-5.2 is cheaper on input tokens — $0.95 vs $5.00 per 1M.
- GPT-5.5 has a larger context window (1.1M vs 1M tokens).
- GLM-5.2 ranks higher for coding (91th vs 90th percentile).
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Which is cheaper, GLM-5.2 or GPT-5.5?
GLM-5.2 is cheaper on input tokens at $0.95 per million, versus $5.00 (representative OpenRouter pricing).
Which has a larger context window, GLM-5.2 or GPT-5.5?
GPT-5.5 supports up to 1.1M tokens, compared with 1M for the other.
Which is better for coding, GLM-5.2 or GPT-5.5?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, GLM-5.2 ranks higher — 91th vs 90th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.