DeepSeek V3.1 (Reasoning) vs Grok 4.1 Fast

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 25 (48 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

Knowledge

Grok 4.1 Fast

DeepSeek V3.1 (Reasoning)

31.8

Grok 4.1 Fast

91

34
MMLU
94
33
GPQA
92
31
SuperGPQA
90
29
OpenBookQA
88

Coding

Grok 4.1 Fast

DeepSeek V3.1 (Reasoning)

26

Grok 4.1 Fast

86

26
HumanEval
86

Mathematics

Grok 4.1 Fast

DeepSeek V3.1 (Reasoning)

33

Grok 4.1 Fast

95

34
AIME 2023
96
36
AIME 2024
98
35
AIME 2025
97
30
HMMT Feb 2023
92
32
HMMT Feb 2024
94
31
HMMT Feb 2025
93
33
BRUMO 2025
95

Reasoning

Grok 4.1 Fast

DeepSeek V3.1 (Reasoning)

31

Grok 4.1 Fast

89

32
SimpleQA
90
30
MuSR
88

Frequently Asked Questions

Which is better, DeepSeek V3.1 (Reasoning) or Grok 4.1 Fast?

Grok 4.1 Fast scores higher overall with 73 vs 25, a difference of 48 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek V3.1 (Reasoning) or Grok 4.1 Fast?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 31.8.

Which is better for coding, DeepSeek V3.1 (Reasoning) or Grok 4.1 Fast?

Grok 4.1 Fast leads in coding with an average score of 86 vs 26.

Which is better for math, DeepSeek V3.1 (Reasoning) or Grok 4.1 Fast?

Grok 4.1 Fast leads in math with an average score of 95 vs 33.

Which is better for reasoning, DeepSeek V3.1 (Reasoning) or Grok 4.1 Fast?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 31.