benchlm.ai

Claude Opus 4.5 vs Gemma 3 27B

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

Quick Verdict

Claude Opus 4.5 wins overall with a score of 79 vs 36 (43 point difference).Claude Opus 4.5 wins 4 out of 4 categories.

Claude Opus 4.5

CreatorAnthropic
TypeProprietary
Context200K
Score79

Gemma 3 27B

CreatorGoogle
TypeOpen Weight
Context32K
Score36

Knowledge

Claude Opus 4.5

Claude Opus 4.5

96

Gemma 3 27B

42.8

99
MMLU
45
97
GPQA
44
95
SuperGPQA
42
93
OpenBookQA
40

Coding

Claude Opus 4.5

Claude Opus 4.5

91

Gemma 3 27B

37

91
HumanEval
37

Mathematics

Claude Opus 4.5

Claude Opus 4.5

97.1

Gemma 3 27B

44

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

Reasoning

Claude Opus 4.5

Claude Opus 4.5

94

Gemma 3 27B

42

95
SimpleQA
43
93
MuSR
41

Frequently Asked Questions

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

Claude Opus 4.5 scores higher overall with 79 vs 36, a difference of 43 points across all benchmarks.

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

Claude Opus 4.5 leads in knowledge tasks with an average score of 96 vs 42.8.

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

Claude Opus 4.5 leads in coding with an average score of 91 vs 37.

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

Claude Opus 4.5 leads in math with an average score of 97.1 vs 44.

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

Claude Opus 4.5 leads in reasoning with an average score of 94 vs 42.

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