benchlm.ai

GLM-5 (Reasoning) vs GPT-OSS 120B

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

Quick Verdict

GLM-5 (Reasoning) wins overall with a score of 75 vs 42 (33 point difference).GLM-5 (Reasoning) wins 4 out of 4 categories.

GLM-5 (Reasoning)

CreatorZhipu AI
TypeOpen Weight
Context200K
Score75

GPT-OSS 120B

CreatorOpenAI
TypeOpen Weight
Context128K
Score42

Knowledge

GLM-5 (Reasoning)

GLM-5 (Reasoning)

93

GPT-OSS 120B

48.8

96
MMLU
51
94
GPQA
50
92
SuperGPQA
48
90
OpenBookQA
46

Coding

GLM-5 (Reasoning)

GLM-5 (Reasoning)

88

GPT-OSS 120B

43

88
HumanEval
43

Mathematics

GLM-5 (Reasoning)

GLM-5 (Reasoning)

96.6

GPT-OSS 120B

50

98
AIME 2023
51
99
AIME 2024
53
98
AIME 2025
52
94
HMMT Feb 2023
47
96
HMMT Feb 2024
49
95
HMMT Feb 2025
48
96
BRUMO 2025
50

Reasoning

GLM-5 (Reasoning)

GLM-5 (Reasoning)

91

GPT-OSS 120B

48

92
SimpleQA
49
90
MuSR
47

Frequently Asked Questions

Which is better, GLM-5 (Reasoning) or GPT-OSS 120B?

GLM-5 (Reasoning) scores higher overall with 75 vs 42, a difference of 33 points across all benchmarks.

Which is better for knowledge tasks, GLM-5 (Reasoning) or GPT-OSS 120B?

GLM-5 (Reasoning) leads in knowledge tasks with an average score of 93 vs 48.8.

Which is better for coding, GLM-5 (Reasoning) or GPT-OSS 120B?

GLM-5 (Reasoning) leads in coding with an average score of 88 vs 43.

Which is better for math, GLM-5 (Reasoning) or GPT-OSS 120B?

GLM-5 (Reasoning) leads in math with an average score of 96.6 vs 50.

Which is better for reasoning, GLM-5 (Reasoning) or GPT-OSS 120B?

GLM-5 (Reasoning) leads in reasoning with an average score of 91 vs 48.

Related Comparisons

GLM-5 (Reasoning) vs GPT-5.4GLM-5 (Reasoning) vs Gemini 3.1 ProGLM-5 (Reasoning) vs Claude Opus 4.6GLM-5 (Reasoning) vs GPT-5.3 CodexGLM-5 (Reasoning) vs Grok 4.1GLM-5 (Reasoning) vs GPT-5.2