o3 vs Qwen3.5 397B

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

Quick Verdict

o3 wins overall with a score of 67 vs 65 (2 point difference).o3 wins 4 out of 4 categories.

Knowledge

o3

o3

85.3

Qwen3.5 397B

80.8

86
MMLU
83
87
GPQA
82
85
SuperGPQA
80
83
OpenBookQA
78

Coding

o3

o3

78

Qwen3.5 397B

75

78
HumanEval
75

Mathematics

o3

o3

87

Qwen3.5 397B

82

88
AIME 2023
83
90
AIME 2024
85
89
AIME 2025
84
84
HMMT Feb 2023
79
86
HMMT Feb 2024
81
85
HMMT Feb 2025
80
87
BRUMO 2025
82

Reasoning

o3

o3

83

Qwen3.5 397B

79

84
SimpleQA
80
82
MuSR
78

Frequently Asked Questions

Which is better, o3 or Qwen3.5 397B?

o3 scores higher overall with 67 vs 65, a difference of 2 points across all benchmarks.

Which is better for knowledge tasks, o3 or Qwen3.5 397B?

o3 leads in knowledge tasks with an average score of 85.3 vs 80.8.

Which is better for coding, o3 or Qwen3.5 397B?

o3 leads in coding with an average score of 78 vs 75.

Which is better for math, o3 or Qwen3.5 397B?

o3 leads in math with an average score of 87 vs 82.

Which is better for reasoning, o3 or Qwen3.5 397B?

o3 leads in reasoning with an average score of 83 vs 79.