benchlm.ai

Gemini 1.0 Pro vs GPT-OSS 20B

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

Quick Verdict

Gemini 1.0 Pro wins overall with a score of 52 vs 22 (30 point difference).Gemini 1.0 Pro wins 4 out of 4 categories.

Gemini 1.0 Pro

CreatorGoogle
TypeProprietary
Context32K
Score52

GPT-OSS 20B

CreatorOpenAI
TypeOpen Weight
Context128K
Score22

Knowledge

Gemini 1.0 Pro

Gemini 1.0 Pro

60.5

GPT-OSS 20B

28.8

62
MMLU
31
62
GPQA
30
60
SuperGPQA
28
58
OpenBookQA
26

Coding

Gemini 1.0 Pro

Gemini 1.0 Pro

54

GPT-OSS 20B

23

54
HumanEval
23

Mathematics

Gemini 1.0 Pro

Gemini 1.0 Pro

61

GPT-OSS 20B

30

62
AIME 2023
31
64
AIME 2024
33
63
AIME 2025
32
58
HMMT Feb 2023
27
60
HMMT Feb 2024
29
59
HMMT Feb 2025
28
61
BRUMO 2025
30

Reasoning

Gemini 1.0 Pro

Gemini 1.0 Pro

59

GPT-OSS 20B

28

60
SimpleQA
29
58
MuSR
27

Frequently Asked Questions

Which is better, Gemini 1.0 Pro or GPT-OSS 20B?

Gemini 1.0 Pro scores higher overall with 52 vs 22, a difference of 30 points across all benchmarks.

Which is better for knowledge tasks, Gemini 1.0 Pro or GPT-OSS 20B?

Gemini 1.0 Pro leads in knowledge tasks with an average score of 60.5 vs 28.8.

Which is better for coding, Gemini 1.0 Pro or GPT-OSS 20B?

Gemini 1.0 Pro leads in coding with an average score of 54 vs 23.

Which is better for math, Gemini 1.0 Pro or GPT-OSS 20B?

Gemini 1.0 Pro leads in math with an average score of 61 vs 30.

Which is better for reasoning, Gemini 1.0 Pro or GPT-OSS 20B?

Gemini 1.0 Pro leads in reasoning with an average score of 59 vs 28.

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