DeepSeek LLM 2.0 vs GPT-5.1

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

Quick Verdict

GPT-5.1 wins overall with a score of 76 vs 63 (13 point difference).GPT-5.1 wins 4 out of 4 categories.

Knowledge

GPT-5.1

DeepSeek LLM 2.0

76.8

GPT-5.1

94

79
MMLU
97
78
GPQA
95
76
SuperGPQA
93
74
OpenBookQA
91

Coding

GPT-5.1

DeepSeek LLM 2.0

73

GPT-5.1

89

73
HumanEval
89

Mathematics

GPT-5.1

DeepSeek LLM 2.0

79

GPT-5.1

97.1

80
AIME 2023
99
82
AIME 2024
99
81
AIME 2025
98
76
HMMT Feb 2023
95
78
HMMT Feb 2024
97
77
HMMT Feb 2025
96
79
BRUMO 2025
96

Reasoning

GPT-5.1

DeepSeek LLM 2.0

76

GPT-5.1

92

77
SimpleQA
93
75
MuSR
91

Frequently Asked Questions

Which is better, DeepSeek LLM 2.0 or GPT-5.1?

GPT-5.1 scores higher overall with 76 vs 63, a difference of 13 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek LLM 2.0 or GPT-5.1?

GPT-5.1 leads in knowledge tasks with an average score of 94 vs 76.8.

Which is better for coding, DeepSeek LLM 2.0 or GPT-5.1?

GPT-5.1 leads in coding with an average score of 89 vs 73.

Which is better for math, DeepSeek LLM 2.0 or GPT-5.1?

GPT-5.1 leads in math with an average score of 97.1 vs 79.

Which is better for reasoning, DeepSeek LLM 2.0 or GPT-5.1?

GPT-5.1 leads in reasoning with an average score of 92 vs 76.