benchlm.ai

Grok 4.1 Fast vs Qwen3.5 397B

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 65 (8 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

Grok 4.1 Fast

CreatorxAI
TypeProprietary
Context2M
Score73

Qwen3.5 397B

CreatorAlibaba
TypeOpen Weight
Context128K
Score65

Knowledge

Grok 4.1 Fast

Grok 4.1 Fast

91

Qwen3.5 397B

80.8

94
MMLU
83
92
GPQA
82
90
SuperGPQA
80
88
OpenBookQA
78

Coding

Grok 4.1 Fast

Grok 4.1 Fast

86

Qwen3.5 397B

75

86
HumanEval
75

Mathematics

Grok 4.1 Fast

Grok 4.1 Fast

95

Qwen3.5 397B

82

96
AIME 2023
83
98
AIME 2024
85
97
AIME 2025
84
92
HMMT Feb 2023
79
94
HMMT Feb 2024
81
93
HMMT Feb 2025
80
95
BRUMO 2025
82

Reasoning

Grok 4.1 Fast

Grok 4.1 Fast

89

Qwen3.5 397B

79

90
SimpleQA
80
88
MuSR
78

Frequently Asked Questions

Which is better, Grok 4.1 Fast or Qwen3.5 397B?

Grok 4.1 Fast scores higher overall with 73 vs 65, a difference of 8 points across all benchmarks.

Which is better for knowledge tasks, Grok 4.1 Fast or Qwen3.5 397B?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 80.8.

Which is better for coding, Grok 4.1 Fast or Qwen3.5 397B?

Grok 4.1 Fast leads in coding with an average score of 86 vs 75.

Which is better for math, Grok 4.1 Fast or Qwen3.5 397B?

Grok 4.1 Fast leads in math with an average score of 95 vs 82.

Which is better for reasoning, Grok 4.1 Fast or Qwen3.5 397B?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 79.

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