Grok Code Fast 1 vs Qwen3.5 397B (Reasoning)

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

Quick Verdict

Qwen3.5 397B (Reasoning) wins overall with a score of 70 vs 54 (16 point difference).Qwen3.5 397B (Reasoning) wins 4 out of 4 categories.

Knowledge

Qwen3.5 397B (Reasoning)

Grok Code Fast 1

61.8

Qwen3.5 397B (Reasoning)

88

64
MMLU
91
63
GPQA
89
61
SuperGPQA
87
59
OpenBookQA
85

Coding

Qwen3.5 397B (Reasoning)

Grok Code Fast 1

60

Qwen3.5 397B (Reasoning)

83

60
HumanEval
83

Mathematics

Qwen3.5 397B (Reasoning)

Grok Code Fast 1

63

Qwen3.5 397B (Reasoning)

92

64
AIME 2023
93
66
AIME 2024
95
65
AIME 2025
94
60
HMMT Feb 2023
89
62
HMMT Feb 2024
91
61
HMMT Feb 2025
90
63
BRUMO 2025
92

Reasoning

Qwen3.5 397B (Reasoning)

Grok Code Fast 1

60

Qwen3.5 397B (Reasoning)

86

61
SimpleQA
87
59
MuSR
85

Frequently Asked Questions

Which is better, Grok Code Fast 1 or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) scores higher overall with 70 vs 54, a difference of 16 points across all benchmarks.

Which is better for knowledge tasks, Grok Code Fast 1 or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) leads in knowledge tasks with an average score of 88 vs 61.8.

Which is better for coding, Grok Code Fast 1 or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) leads in coding with an average score of 83 vs 60.

Which is better for math, Grok Code Fast 1 or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) leads in math with an average score of 92 vs 63.

Which is better for reasoning, Grok Code Fast 1 or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) leads in reasoning with an average score of 86 vs 60.