Gemma 3 27B vs GPT-5.1

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

Quick Verdict

GPT-5.1 wins overall with a score of 76 vs 36 (40 point difference).GPT-5.1 wins 4 out of 4 categories.

Knowledge

GPT-5.1

Gemma 3 27B

42.8

GPT-5.1

94

45
MMLU
97
44
GPQA
95
42
SuperGPQA
93
40
OpenBookQA
91

Coding

GPT-5.1

Gemma 3 27B

37

GPT-5.1

89

37
HumanEval
89

Mathematics

GPT-5.1

Gemma 3 27B

44

GPT-5.1

97.1

45
AIME 2023
99
47
AIME 2024
99
46
AIME 2025
98
41
HMMT Feb 2023
95
43
HMMT Feb 2024
97
42
HMMT Feb 2025
96
44
BRUMO 2025
96

Reasoning

GPT-5.1

Gemma 3 27B

42

GPT-5.1

92

43
SimpleQA
93
41
MuSR
91

Frequently Asked Questions

Which is better, Gemma 3 27B or GPT-5.1?

GPT-5.1 scores higher overall with 76 vs 36, a difference of 40 points across all benchmarks.

Which is better for knowledge tasks, Gemma 3 27B or GPT-5.1?

GPT-5.1 leads in knowledge tasks with an average score of 94 vs 42.8.

Which is better for coding, Gemma 3 27B or GPT-5.1?

GPT-5.1 leads in coding with an average score of 89 vs 37.

Which is better for math, Gemma 3 27B or GPT-5.1?

GPT-5.1 leads in math with an average score of 97.1 vs 44.

Which is better for reasoning, Gemma 3 27B or GPT-5.1?

GPT-5.1 leads in reasoning with an average score of 92 vs 42.