benchlm.ai

Gemini 2.5 Pro vs Z-1

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

Quick Verdict

Gemini 2.5 Pro wins overall with a score of 65 vs 43 (22 point difference).Gemini 2.5 Pro wins 4 out of 4 categories.

Gemini 2.5 Pro

CreatorGoogle
TypeProprietary
Context2M
Score65

Z-1

CreatorZ
TypeProprietary
Context128K
Score43

Knowledge

Gemini 2.5 Pro

Gemini 2.5 Pro

81.5

Z-1

49.8

83
MMLU
52
83
GPQA
51
81
SuperGPQA
49
79
OpenBookQA
47

Coding

Gemini 2.5 Pro

Gemini 2.5 Pro

75

Z-1

44

75
HumanEval
44

Mathematics

Gemini 2.5 Pro

Gemini 2.5 Pro

83

Z-1

51

84
AIME 2023
52
86
AIME 2024
54
85
AIME 2025
53
80
HMMT Feb 2023
48
82
HMMT Feb 2024
50
81
HMMT Feb 2025
49
83
BRUMO 2025
51

Reasoning

Gemini 2.5 Pro

Gemini 2.5 Pro

80

Z-1

49

81
SimpleQA
50
79
MuSR
48

Frequently Asked Questions

Which is better, Gemini 2.5 Pro or Z-1?

Gemini 2.5 Pro scores higher overall with 65 vs 43, a difference of 22 points across all benchmarks.

Which is better for knowledge tasks, Gemini 2.5 Pro or Z-1?

Gemini 2.5 Pro leads in knowledge tasks with an average score of 81.5 vs 49.8.

Which is better for coding, Gemini 2.5 Pro or Z-1?

Gemini 2.5 Pro leads in coding with an average score of 75 vs 44.

Which is better for math, Gemini 2.5 Pro or Z-1?

Gemini 2.5 Pro leads in math with an average score of 83 vs 51.

Which is better for reasoning, Gemini 2.5 Pro or Z-1?

Gemini 2.5 Pro leads in reasoning with an average score of 80 vs 49.

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