DeepSeek Coder 2.0 vs o3

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

Quick Verdict

o3 wins overall with a score of 67 vs 64 (3 point difference).o3 wins 3 out of 4 categories.

Knowledge

o3

DeepSeek Coder 2.0

77.8

o3

85.3

80
MMLU
86
79
GPQA
87
77
SuperGPQA
85
75
OpenBookQA
83

Coding

DeepSeek Coder 2.0

DeepSeek Coder 2.0

82

o3

78

82
HumanEval
78

Mathematics

o3

DeepSeek Coder 2.0

80

o3

87

81
AIME 2023
88
83
AIME 2024
90
82
AIME 2025
89
77
HMMT Feb 2023
84
79
HMMT Feb 2024
86
78
HMMT Feb 2025
85
80
BRUMO 2025
87

Reasoning

o3

DeepSeek Coder 2.0

77

o3

83

78
SimpleQA
84
76
MuSR
82

Frequently Asked Questions

Which is better, DeepSeek Coder 2.0 or o3?

o3 scores higher overall with 67 vs 64, a difference of 3 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek Coder 2.0 or o3?

o3 leads in knowledge tasks with an average score of 85.3 vs 77.8.

Which is better for coding, DeepSeek Coder 2.0 or o3?

DeepSeek Coder 2.0 leads in coding with an average score of 82 vs 78.

Which is better for math, DeepSeek Coder 2.0 or o3?

o3 leads in math with an average score of 87 vs 80.

Which is better for reasoning, DeepSeek Coder 2.0 or o3?

o3 leads in reasoning with an average score of 83 vs 77.