benchlm.ai

DeepSeek Coder 2.0 vs GPT-5 (medium)

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

Quick Verdict

GPT-5 (medium) wins overall with a score of 70 vs 64 (6 point difference).GPT-5 (medium) wins 4 out of 4 categories.

DeepSeek Coder 2.0

CreatorDeepSeek
TypeOpen Weight
Context128K
Score64

GPT-5 (medium)

CreatorOpenAI
TypeProprietary
Context128K
Score70

Knowledge

GPT-5 (medium)

DeepSeek Coder 2.0

77.8

GPT-5 (medium)

88

80
MMLU
91
79
GPQA
89
77
SuperGPQA
87
75
OpenBookQA
85

Coding

GPT-5 (medium)

DeepSeek Coder 2.0

82

GPT-5 (medium)

83

82
HumanEval
83

Mathematics

GPT-5 (medium)

DeepSeek Coder 2.0

80

GPT-5 (medium)

92

81
AIME 2023
93
83
AIME 2024
95
82
AIME 2025
94
77
HMMT Feb 2023
89
79
HMMT Feb 2024
91
78
HMMT Feb 2025
90
80
BRUMO 2025
92

Reasoning

GPT-5 (medium)

DeepSeek Coder 2.0

77

GPT-5 (medium)

86

78
SimpleQA
87
76
MuSR
85

Frequently Asked Questions

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

GPT-5 (medium) scores higher overall with 70 vs 64, a difference of 6 points across all benchmarks.

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

GPT-5 (medium) leads in knowledge tasks with an average score of 88 vs 77.8.

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

GPT-5 (medium) leads in coding with an average score of 83 vs 82.

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

GPT-5 (medium) leads in math with an average score of 92 vs 80.

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

GPT-5 (medium) leads in reasoning with an average score of 86 vs 77.

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