Llama 4 Behemoth 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 39 (31 point difference).Qwen3.5 397B (Reasoning) wins 4 out of 4 categories.

Knowledge

Qwen3.5 397B (Reasoning)

Llama 4 Behemoth

45.8

Qwen3.5 397B (Reasoning)

88

48
MMLU
91
47
GPQA
89
45
SuperGPQA
87
43
OpenBookQA
85

Coding

Qwen3.5 397B (Reasoning)

Llama 4 Behemoth

40

Qwen3.5 397B (Reasoning)

83

40
HumanEval
83

Mathematics

Qwen3.5 397B (Reasoning)

Llama 4 Behemoth

47

Qwen3.5 397B (Reasoning)

92

48
AIME 2023
93
50
AIME 2024
95
49
AIME 2025
94
44
HMMT Feb 2023
89
46
HMMT Feb 2024
91
45
HMMT Feb 2025
90
47
BRUMO 2025
92

Reasoning

Qwen3.5 397B (Reasoning)

Llama 4 Behemoth

45

Qwen3.5 397B (Reasoning)

86

46
SimpleQA
87
44
MuSR
85

Frequently Asked Questions

Which is better, Llama 4 Behemoth or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) scores higher overall with 70 vs 39, a difference of 31 points across all benchmarks.

Which is better for knowledge tasks, Llama 4 Behemoth or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) leads in knowledge tasks with an average score of 88 vs 45.8.

Which is better for coding, Llama 4 Behemoth or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) leads in coding with an average score of 83 vs 40.

Which is better for math, Llama 4 Behemoth or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) leads in math with an average score of 92 vs 47.

Which is better for reasoning, Llama 4 Behemoth or Qwen3.5 397B (Reasoning)?

Qwen3.5 397B (Reasoning) leads in reasoning with an average score of 86 vs 45.