benchlm.ai

Claude 4 Sonnet vs Z-1

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

Quick Verdict

Claude 4 Sonnet wins overall with a score of 59 vs 43 (16 point difference).Claude 4 Sonnet wins 4 out of 4 categories.

Claude 4 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score59

Z-1

CreatorZ
TypeProprietary
Context128K
Score43

Knowledge

Claude 4 Sonnet

Claude 4 Sonnet

71.5

Z-1

49.8

73
MMLU
52
73
GPQA
51
71
SuperGPQA
49
69
OpenBookQA
47

Coding

Claude 4 Sonnet

Claude 4 Sonnet

65

Z-1

44

65
HumanEval
44

Mathematics

Claude 4 Sonnet

Claude 4 Sonnet

72

Z-1

51

73
AIME 2023
52
75
AIME 2024
54
74
AIME 2025
53
69
HMMT Feb 2023
48
71
HMMT Feb 2024
50
70
HMMT Feb 2025
49
72
BRUMO 2025
51

Reasoning

Claude 4 Sonnet

Claude 4 Sonnet

70

Z-1

49

71
SimpleQA
50
69
MuSR
48

Frequently Asked Questions

Which is better, Claude 4 Sonnet or Z-1?

Claude 4 Sonnet scores higher overall with 59 vs 43, a difference of 16 points across all benchmarks.

Which is better for knowledge tasks, Claude 4 Sonnet or Z-1?

Claude 4 Sonnet leads in knowledge tasks with an average score of 71.5 vs 49.8.

Which is better for coding, Claude 4 Sonnet or Z-1?

Claude 4 Sonnet leads in coding with an average score of 65 vs 44.

Which is better for math, Claude 4 Sonnet or Z-1?

Claude 4 Sonnet leads in math with an average score of 72 vs 51.

Which is better for reasoning, Claude 4 Sonnet or Z-1?

Claude 4 Sonnet leads in reasoning with an average score of 70 vs 49.

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