benchlm.ai

Grok 4.1 Fast vs o1-preview

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

Quick Verdict

Grok 4.1 Fast wins overall with a score of 73 vs 71 (2 point difference).Grok 4.1 Fast wins 3 out of 4 categories.

Grok 4.1 Fast

CreatorxAI
TypeProprietary
Context2M
Score73

o1-preview

CreatorOpenAI
TypeProprietary
Context200K
Score71

Knowledge

Grok 4.1 Fast

Grok 4.1 Fast

91

o1-preview

89

94
MMLU
92
92
GPQA
90
90
SuperGPQA
88
88
OpenBookQA
86

Coding

Tie

Grok 4.1 Fast

86

o1-preview

86

86
HumanEval
86

Mathematics

Grok 4.1 Fast

Grok 4.1 Fast

95

o1-preview

93

96
AIME 2023
94
98
AIME 2024
96
97
AIME 2025
95
92
HMMT Feb 2023
90
94
HMMT Feb 2024
92
93
HMMT Feb 2025
91
95
BRUMO 2025
93

Reasoning

Grok 4.1 Fast

Grok 4.1 Fast

89

o1-preview

87

90
SimpleQA
88
88
MuSR
86

Frequently Asked Questions

Which is better, Grok 4.1 Fast or o1-preview?

Grok 4.1 Fast scores higher overall with 73 vs 71, a difference of 2 points across all benchmarks.

Which is better for knowledge tasks, Grok 4.1 Fast or o1-preview?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 89.

Which is better for coding, Grok 4.1 Fast or o1-preview?

Grok 4.1 Fast and o1-preview are tied for coding with average scores of 86.

Which is better for math, Grok 4.1 Fast or o1-preview?

Grok 4.1 Fast leads in math with an average score of 95 vs 93.

Which is better for reasoning, Grok 4.1 Fast or o1-preview?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 87.

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