DeepSeek LLM 2.0 vs GPT-4.1 nano

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

DeepSeek LLM 2.0 is clearly ahead on the aggregate, 70 to 23. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

DeepSeek LLM 2.0's sharpest advantage is in mathematics, where it averages 79.5 against 9.8. The single biggest benchmark swing on the page is AIME 2024, 82 to 9.8.

GPT-4.1 nano gives you the larger context window at 1M, compared with 128K for DeepSeek LLM 2.0.

Quick Verdict

Pick DeepSeek LLM 2.0 if you want the stronger benchmark profile. GPT-4.1 nano only becomes the better choice if you need the larger 1M context window.

Knowledge

Tie

DeepSeek LLM 2.0

65.2

GPT-4.1 nano

65.2

79
MMLU
80.1
78
GPQA
50.3
76
SuperGPQA
-
74
OpenBookQA
-
72
MMLU-Pro
-
12
HLE
-

Coding

DeepSeek LLM 2.0
73
HumanEval
-
46
SWE-bench Verified
-
39
LiveCodeBench
-

Mathematics

DeepSeek LLM 2.0

DeepSeek LLM 2.0

79.5

GPT-4.1 nano

9.8

80
AIME 2023
-
82
AIME 2024
9.8
81
AIME 2025
-
76
HMMT Feb 2023
-
78
HMMT Feb 2024
-
77
HMMT Feb 2025
-
79
BRUMO 2025
-
83
MATH-500
-

Reasoning

DeepSeek LLM 2.0
77
SimpleQA
-
75
MuSR
-
81
BBH
-

Instruction Following

DeepSeek LLM 2.0

DeepSeek LLM 2.0

85

GPT-4.1 nano

83.2

85
IFEval
83.2

Multilingual

DeepSeek LLM 2.0
82
MGSM
-

Frequently Asked Questions

Which is better, DeepSeek LLM 2.0 or GPT-4.1 nano?

DeepSeek LLM 2.0 is ahead overall, 70 to 23. The biggest single separator in this matchup is AIME 2024, where the scores are 82 and 9.8.

Which is better for knowledge tasks, DeepSeek LLM 2.0 or GPT-4.1 nano?

DeepSeek LLM 2.0 and GPT-4.1 nano are effectively tied for knowledge tasks here, both landing at 65.2 on average.

Which is better for math, DeepSeek LLM 2.0 or GPT-4.1 nano?

DeepSeek LLM 2.0 has the edge for math in this comparison, averaging 79.5 versus 9.8. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Which is better for instruction following, DeepSeek LLM 2.0 or GPT-4.1 nano?

DeepSeek LLM 2.0 has the edge for instruction following in this comparison, averaging 85 versus 83.2. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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