benchlm.ai

Claude 4.1 Opus Thinking vs Z-1

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

Quick Verdict

Z-1 wins overall with a score of 43 vs 29 (14 point difference).Z-1 wins 4 out of 4 categories.

Claude 4.1 Opus Thinking

CreatorAnthropic
TypeProprietary
Context200K
Score29

Z-1

CreatorZ
TypeProprietary
Context128K
Score43

Knowledge

Z-1

Claude 4.1 Opus Thinking

35.8

Z-1

49.8

38
MMLU
52
37
GPQA
51
35
SuperGPQA
49
33
OpenBookQA
47

Coding

Z-1

Claude 4.1 Opus Thinking

30

Z-1

44

30
HumanEval
44

Mathematics

Z-1

Claude 4.1 Opus Thinking

37

Z-1

51

38
AIME 2023
52
40
AIME 2024
54
39
AIME 2025
53
34
HMMT Feb 2023
48
36
HMMT Feb 2024
50
35
HMMT Feb 2025
49
37
BRUMO 2025
51

Reasoning

Z-1

Claude 4.1 Opus Thinking

35

Z-1

49

36
SimpleQA
50
34
MuSR
48

Frequently Asked Questions

Which is better, Claude 4.1 Opus Thinking or Z-1?

Z-1 scores higher overall with 43 vs 29, a difference of 14 points across all benchmarks.

Which is better for knowledge tasks, Claude 4.1 Opus Thinking or Z-1?

Z-1 leads in knowledge tasks with an average score of 49.8 vs 35.8.

Which is better for coding, Claude 4.1 Opus Thinking or Z-1?

Z-1 leads in coding with an average score of 44 vs 30.

Which is better for math, Claude 4.1 Opus Thinking or Z-1?

Z-1 leads in math with an average score of 51 vs 37.

Which is better for reasoning, Claude 4.1 Opus Thinking or Z-1?

Z-1 leads in reasoning with an average score of 49 vs 35.

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