benchlm.ai

DeepSeek V3.1 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 24 (46 point difference).GPT-5 (medium) wins 4 out of 4 categories.

DeepSeek V3.1

CreatorDeepSeek
TypeOpen Weight
Context128K
Score24

GPT-5 (medium)

CreatorOpenAI
TypeProprietary
Context128K
Score70

Knowledge

GPT-5 (medium)

DeepSeek V3.1

30.8

GPT-5 (medium)

88

33
MMLU
91
32
GPQA
89
30
SuperGPQA
87
28
OpenBookQA
85

Coding

GPT-5 (medium)

DeepSeek V3.1

25

GPT-5 (medium)

83

25
HumanEval
83

Mathematics

GPT-5 (medium)

DeepSeek V3.1

32

GPT-5 (medium)

92

33
AIME 2023
93
35
AIME 2024
95
34
AIME 2025
94
29
HMMT Feb 2023
89
31
HMMT Feb 2024
91
30
HMMT Feb 2025
90
32
BRUMO 2025
92

Reasoning

GPT-5 (medium)

DeepSeek V3.1

30

GPT-5 (medium)

86

31
SimpleQA
87
29
MuSR
85

Frequently Asked Questions

Which is better, DeepSeek V3.1 or GPT-5 (medium)?

GPT-5 (medium) scores higher overall with 70 vs 24, a difference of 46 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek V3.1 or GPT-5 (medium)?

GPT-5 (medium) leads in knowledge tasks with an average score of 88 vs 30.8.

Which is better for coding, DeepSeek V3.1 or GPT-5 (medium)?

GPT-5 (medium) leads in coding with an average score of 83 vs 25.

Which is better for math, DeepSeek V3.1 or GPT-5 (medium)?

GPT-5 (medium) leads in math with an average score of 92 vs 32.

Which is better for reasoning, DeepSeek V3.1 or GPT-5 (medium)?

GPT-5 (medium) leads in reasoning with an average score of 86 vs 30.

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