DeepSeek Coder 2.0 vs GPT-5 (high)

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

Quick Verdict

GPT-5 (high) wins overall with a score of 72 vs 64 (8 point difference).GPT-5 (high) wins 4 out of 4 categories.

Knowledge

GPT-5 (high)

DeepSeek Coder 2.0

77.8

GPT-5 (high)

90

80
MMLU
93
79
GPQA
91
77
SuperGPQA
89
75
OpenBookQA
87

Coding

GPT-5 (high)

DeepSeek Coder 2.0

82

GPT-5 (high)

85

82
HumanEval
85

Mathematics

GPT-5 (high)

DeepSeek Coder 2.0

80

GPT-5 (high)

94

81
AIME 2023
95
83
AIME 2024
97
82
AIME 2025
96
77
HMMT Feb 2023
91
79
HMMT Feb 2024
93
78
HMMT Feb 2025
92
80
BRUMO 2025
94

Reasoning

GPT-5 (high)

DeepSeek Coder 2.0

77

GPT-5 (high)

88

78
SimpleQA
89
76
MuSR
87

Frequently Asked Questions

Which is better, DeepSeek Coder 2.0 or GPT-5 (high)?

GPT-5 (high) scores higher overall with 72 vs 64, a difference of 8 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek Coder 2.0 or GPT-5 (high)?

GPT-5 (high) leads in knowledge tasks with an average score of 90 vs 77.8.

Which is better for coding, DeepSeek Coder 2.0 or GPT-5 (high)?

GPT-5 (high) leads in coding with an average score of 85 vs 82.

Which is better for math, DeepSeek Coder 2.0 or GPT-5 (high)?

GPT-5 (high) leads in math with an average score of 94 vs 80.

Which is better for reasoning, DeepSeek Coder 2.0 or GPT-5 (high)?

GPT-5 (high) leads in reasoning with an average score of 88 vs 77.