benchlm.ai

Grok Code Fast 1 vs Z-1

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

Quick Verdict

Grok Code Fast 1 wins overall with a score of 54 vs 43 (11 point difference).Grok Code Fast 1 wins 4 out of 4 categories.

Grok Code Fast 1

CreatorxAI
TypeProprietary
Context256K
Score54

Z-1

CreatorZ
TypeProprietary
Context128K
Score43

Knowledge

Grok Code Fast 1

Grok Code Fast 1

61.8

Z-1

49.8

64
MMLU
52
63
GPQA
51
61
SuperGPQA
49
59
OpenBookQA
47

Coding

Grok Code Fast 1

Grok Code Fast 1

60

Z-1

44

60
HumanEval
44

Mathematics

Grok Code Fast 1

Grok Code Fast 1

63

Z-1

51

64
AIME 2023
52
66
AIME 2024
54
65
AIME 2025
53
60
HMMT Feb 2023
48
62
HMMT Feb 2024
50
61
HMMT Feb 2025
49
63
BRUMO 2025
51

Reasoning

Grok Code Fast 1

Grok Code Fast 1

60

Z-1

49

61
SimpleQA
50
59
MuSR
48

Frequently Asked Questions

Which is better, Grok Code Fast 1 or Z-1?

Grok Code Fast 1 scores higher overall with 54 vs 43, a difference of 11 points across all benchmarks.

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

Grok Code Fast 1 leads in knowledge tasks with an average score of 61.8 vs 49.8.

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

Grok Code Fast 1 leads in coding with an average score of 60 vs 44.

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

Grok Code Fast 1 leads in math with an average score of 63 vs 51.

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

Grok Code Fast 1 leads in reasoning with an average score of 60 vs 49.

Related Comparisons

Grok Code Fast 1 vs GPT-5.4Grok Code Fast 1 vs Gemini 3.1 ProGrok Code Fast 1 vs Claude Opus 4.6Grok Code Fast 1 vs GPT-5.3 CodexGrok Code Fast 1 vs Grok 4.1Grok Code Fast 1 vs GPT-5.2