Claude Sonnet 4.5 vs Gemma 3 27B

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

Quick Verdict

Claude Sonnet 4.5 wins overall with a score of 74 vs 36 (38 point difference).Claude Sonnet 4.5 wins 4 out of 4 categories.

Knowledge

Claude Sonnet 4.5

Claude Sonnet 4.5

92

Gemma 3 27B

42.8

95
MMLU
45
93
GPQA
44
91
SuperGPQA
42
89
OpenBookQA
40

Coding

Claude Sonnet 4.5

Claude Sonnet 4.5

87

Gemma 3 27B

37

87
HumanEval
37

Mathematics

Claude Sonnet 4.5

Claude Sonnet 4.5

96

Gemma 3 27B

44

97
AIME 2023
45
99
AIME 2024
47
98
AIME 2025
46
93
HMMT Feb 2023
41
95
HMMT Feb 2024
43
94
HMMT Feb 2025
42
96
BRUMO 2025
44

Reasoning

Claude Sonnet 4.5

Claude Sonnet 4.5

90

Gemma 3 27B

42

91
SimpleQA
43
89
MuSR
41

Frequently Asked Questions

Which is better, Claude Sonnet 4.5 or Gemma 3 27B?

Claude Sonnet 4.5 scores higher overall with 74 vs 36, a difference of 38 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.5 or Gemma 3 27B?

Claude Sonnet 4.5 leads in knowledge tasks with an average score of 92 vs 42.8.

Which is better for coding, Claude Sonnet 4.5 or Gemma 3 27B?

Claude Sonnet 4.5 leads in coding with an average score of 87 vs 37.

Which is better for math, Claude Sonnet 4.5 or Gemma 3 27B?

Claude Sonnet 4.5 leads in math with an average score of 96 vs 44.

Which is better for reasoning, Claude Sonnet 4.5 or Gemma 3 27B?

Claude Sonnet 4.5 leads in reasoning with an average score of 90 vs 42.