Grok 4 vs Z-1

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

Quick Verdict

Grok 4 wins overall with a score of 69 vs 43 (26 point difference).Grok 4 wins 4 out of 4 categories.

Knowledge

Grok 4

Grok 4

84.8

Z-1

49.8

87
MMLU
52
86
GPQA
51
84
SuperGPQA
49
82
OpenBookQA
47

Coding

Grok 4

Grok 4

79

Z-1

44

79
HumanEval
44

Mathematics

Grok 4

Grok 4

86.6

Z-1

51

87
AIME 2023
52
89
AIME 2024
54
88
AIME 2025
53
84
HMMT Feb 2023
48
86
HMMT Feb 2024
50
85
HMMT Feb 2025
49
87
BRUMO 2025
51

Reasoning

Grok 4

Grok 4

82

Z-1

49

83
SimpleQA
50
81
MuSR
48

Frequently Asked Questions

Which is better, Grok 4 or Z-1?

Grok 4 scores higher overall with 69 vs 43, a difference of 26 points across all benchmarks.

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

Grok 4 leads in knowledge tasks with an average score of 84.8 vs 49.8.

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

Grok 4 leads in coding with an average score of 79 vs 44.

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

Grok 4 leads in math with an average score of 86.6 vs 51.

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

Grok 4 leads in reasoning with an average score of 82 vs 49.