benchlm.ai

Grok 4.1 Fast vs o3-pro

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 68 (5 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

Grok 4.1 Fast

CreatorxAI
TypeProprietary
Context2M
Score73

o3-pro

CreatorOpenAI
TypeProprietary
Context200K
Score68

Knowledge

Grok 4.1 Fast

Grok 4.1 Fast

91

o3-pro

87.3

94
MMLU
88
92
GPQA
89
90
SuperGPQA
87
88
OpenBookQA
85

Coding

Grok 4.1 Fast

Grok 4.1 Fast

86

o3-pro

80

86
HumanEval
80

Mathematics

Grok 4.1 Fast

Grok 4.1 Fast

95

o3-pro

89

96
AIME 2023
90
98
AIME 2024
92
97
AIME 2025
91
92
HMMT Feb 2023
86
94
HMMT Feb 2024
88
93
HMMT Feb 2025
87
95
BRUMO 2025
89

Reasoning

Grok 4.1 Fast

Grok 4.1 Fast

89

o3-pro

85

90
SimpleQA
86
88
MuSR
84

Frequently Asked Questions

Which is better, Grok 4.1 Fast or o3-pro?

Grok 4.1 Fast scores higher overall with 73 vs 68, a difference of 5 points across all benchmarks.

Which is better for knowledge tasks, Grok 4.1 Fast or o3-pro?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 87.3.

Which is better for coding, Grok 4.1 Fast or o3-pro?

Grok 4.1 Fast leads in coding with an average score of 86 vs 80.

Which is better for math, Grok 4.1 Fast or o3-pro?

Grok 4.1 Fast leads in math with an average score of 95 vs 89.

Which is better for reasoning, Grok 4.1 Fast or o3-pro?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 85.

Related Comparisons

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