benchlm.ai

Gemini 1.5 Pro vs GPT-OSS 120B

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

Quick Verdict

Gemini 1.5 Pro wins overall with a score of 54 vs 42 (12 point difference).Gemini 1.5 Pro wins 4 out of 4 categories.

Gemini 1.5 Pro

CreatorGoogle
TypeProprietary
Context2M
Score54

GPT-OSS 120B

CreatorOpenAI
TypeOpen Weight
Context128K
Score42

Knowledge

Gemini 1.5 Pro

Gemini 1.5 Pro

62.5

GPT-OSS 120B

48.8

64
MMLU
51
64
GPQA
50
62
SuperGPQA
48
60
OpenBookQA
46

Coding

Gemini 1.5 Pro

Gemini 1.5 Pro

56

GPT-OSS 120B

43

56
HumanEval
43

Mathematics

Gemini 1.5 Pro

Gemini 1.5 Pro

63

GPT-OSS 120B

50

64
AIME 2023
51
66
AIME 2024
53
65
AIME 2025
52
60
HMMT Feb 2023
47
62
HMMT Feb 2024
49
61
HMMT Feb 2025
48
63
BRUMO 2025
50

Reasoning

Gemini 1.5 Pro

Gemini 1.5 Pro

61

GPT-OSS 120B

48

62
SimpleQA
49
60
MuSR
47

Frequently Asked Questions

Which is better, Gemini 1.5 Pro or GPT-OSS 120B?

Gemini 1.5 Pro scores higher overall with 54 vs 42, a difference of 12 points across all benchmarks.

Which is better for knowledge tasks, Gemini 1.5 Pro or GPT-OSS 120B?

Gemini 1.5 Pro leads in knowledge tasks with an average score of 62.5 vs 48.8.

Which is better for coding, Gemini 1.5 Pro or GPT-OSS 120B?

Gemini 1.5 Pro leads in coding with an average score of 56 vs 43.

Which is better for math, Gemini 1.5 Pro or GPT-OSS 120B?

Gemini 1.5 Pro leads in math with an average score of 63 vs 50.

Which is better for reasoning, Gemini 1.5 Pro or GPT-OSS 120B?

Gemini 1.5 Pro leads in reasoning with an average score of 61 vs 48.

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