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GLM 5 vs GPT-5

Head to head on 14 shared benchmarks, with price, context window, and release dates.

Benchmark scores

77

evals · sort by any column, ⤢ to expand fullscreen

Model
GPT-5

OpenAI

61.1%1623elo72.832.4%68.6%6.6%45.0%83.4%37.8%74.4%73.4%12.9%20.1%0.0%46.7%91.1%88.0%94.6%48.3%0.0%0.150.0%68.1%4.58-57.7%80.0%80.0%91.7%-0.0%88.9%83.3%100.0%-48.9%-58.2%-------54.3%37.5%0.521.62100.0%86.1%-0.0%92.7%92.7%49.6%83.7%93.3%10.0%82.0%0.0%65.5%60.0%0.260.0%18.0%43.7%-74.9%-2.34-87.5%0.8654.8%90.0%90.0%56.7%
GLM 5

Zai

62.9%1598elo70.916.4%66.6%7.6%55.2%82.7%38.3%72.8%70.0%39.4%23.4%97.4%----------7.9%----24.7%----97.9-48395-71.2%73.6%67.9%55.3%77.5%83.5%69.1%------65.2%---------------73.3-69.7%-61.12-----56.4%
2 / 2 models
AttributeGLM 5

Zai

GPT-5

OpenAI

DescriptionGLM-5 is an AI model from Zai, released with open weights.OpenAI's August 2025 unified frontier model that auto-routes between a fast model and a deeper "thinking" variant.
FamilyGlmGPT 5
Params-Undisclosed (closed)
Open weightsopenclosed
LicensemitProprietary
Released11 Feb 20267 Aug 2025
Context204,800400,000
Input $/1M$1.00-
Output $/1M$3.20-
Cache read $/1M$0.120$0.125
Cache write $/1M--
Speed0 tok/s0 tok/s
Latency0.00 s0.00 s
Modalitiestexttext, image, file
Providers-openai
PublisherZaiOpenAI
Reported scores

FAQ

Is GLM 5 or GPT-5 better?
Across the 14 benchmarks both models report on Sophon, GLM 5 and GPT-5 are level, winning 7 each. Which one is "better" depends on the benchmark - the table above shows every shared score.
How do GLM 5 and GPT-5 compare on GPQA Diamond?
GLM 5 scores 66.6% and GPT-5 scores 68.6% on GPQA Diamond.
When were GLM 5 and GPT-5 released?
GLM 5 was released 11 Feb 2026 by Zai. GPT-5 was released 7 Aug 2025 by OpenAI.

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