Claude Opus 4.5 vs Gemini 1.5 Pro

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 54 (25 point difference).Claude Opus 4.5 wins 4 out of 4 categories.

Knowledge

Claude Opus 4.5

Claude Opus 4.5

96

Gemini 1.5 Pro

62.5

99
MMLU
64
97
GPQA
64
95
SuperGPQA
62
93
OpenBookQA
60

Coding

Claude Opus 4.5

Claude Opus 4.5

91

Gemini 1.5 Pro

56

91
HumanEval
56

Mathematics

Claude Opus 4.5

Claude Opus 4.5

97.1

Gemini 1.5 Pro

63

99
AIME 2023
64
99
AIME 2024
66
98
AIME 2025
65
95
HMMT Feb 2023
60
97
HMMT Feb 2024
62
96
HMMT Feb 2025
61
96
BRUMO 2025
63

Reasoning

Claude Opus 4.5

Claude Opus 4.5

94

Gemini 1.5 Pro

61

95
SimpleQA
62
93
MuSR
60

Frequently Asked Questions

Which is better, Claude Opus 4.5 or Gemini 1.5 Pro?

Claude Opus 4.5 scores higher overall with 79 vs 54, a difference of 25 points across all benchmarks.

Which is better for knowledge tasks, Claude Opus 4.5 or Gemini 1.5 Pro?

Claude Opus 4.5 leads in knowledge tasks with an average score of 96 vs 62.5.

Which is better for coding, Claude Opus 4.5 or Gemini 1.5 Pro?

Claude Opus 4.5 leads in coding with an average score of 91 vs 56.

Which is better for math, Claude Opus 4.5 or Gemini 1.5 Pro?

Claude Opus 4.5 leads in math with an average score of 97.1 vs 63.

Which is better for reasoning, Claude Opus 4.5 or Gemini 1.5 Pro?

Claude Opus 4.5 leads in reasoning with an average score of 94 vs 61.