Qwen3.5 397B vs Z-1

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

Quick Verdict

Qwen3.5 397B wins overall with a score of 65 vs 43 (22 point difference).Qwen3.5 397B wins 4 out of 4 categories.

Knowledge

Qwen3.5 397B

Qwen3.5 397B

80.8

Z-1

49.8

83
MMLU
52
82
GPQA
51
80
SuperGPQA
49
78
OpenBookQA
47

Coding

Qwen3.5 397B

Qwen3.5 397B

75

Z-1

44

75
HumanEval
44

Mathematics

Qwen3.5 397B

Qwen3.5 397B

82

Z-1

51

83
AIME 2023
52
85
AIME 2024
54
84
AIME 2025
53
79
HMMT Feb 2023
48
81
HMMT Feb 2024
50
80
HMMT Feb 2025
49
82
BRUMO 2025
51

Reasoning

Qwen3.5 397B

Qwen3.5 397B

79

Z-1

49

80
SimpleQA
50
78
MuSR
48

Frequently Asked Questions

Which is better, Qwen3.5 397B or Z-1?

Qwen3.5 397B scores higher overall with 65 vs 43, a difference of 22 points across all benchmarks.

Which is better for knowledge tasks, Qwen3.5 397B or Z-1?

Qwen3.5 397B leads in knowledge tasks with an average score of 80.8 vs 49.8.

Which is better for coding, Qwen3.5 397B or Z-1?

Qwen3.5 397B leads in coding with an average score of 75 vs 44.

Which is better for math, Qwen3.5 397B or Z-1?

Qwen3.5 397B leads in math with an average score of 82 vs 51.

Which is better for reasoning, Qwen3.5 397B or Z-1?

Qwen3.5 397B leads in reasoning with an average score of 79 vs 49.