DeepSeek V3.1 vs Llama 3.1 405B

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

Quick Verdict

Llama 3.1 405B wins overall with a score of 58 vs 24 (34 point difference).Llama 3.1 405B wins 4 out of 4 categories.

Knowledge

Llama 3.1 405B

DeepSeek V3.1

30.8

Llama 3.1 405B

68.5

33
MMLU
70
32
GPQA
70
30
SuperGPQA
68
28
OpenBookQA
66

Coding

Llama 3.1 405B

DeepSeek V3.1

25

Llama 3.1 405B

62

25
HumanEval
62

Mathematics

Llama 3.1 405B

DeepSeek V3.1

32

Llama 3.1 405B

69

33
AIME 2023
70
35
AIME 2024
72
34
AIME 2025
71
29
HMMT Feb 2023
66
31
HMMT Feb 2024
68
30
HMMT Feb 2025
67
32
BRUMO 2025
69

Reasoning

Llama 3.1 405B

DeepSeek V3.1

30

Llama 3.1 405B

67

31
SimpleQA
68
29
MuSR
66

Frequently Asked Questions

Which is better, DeepSeek V3.1 or Llama 3.1 405B?

Llama 3.1 405B scores higher overall with 58 vs 24, a difference of 34 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek V3.1 or Llama 3.1 405B?

Llama 3.1 405B leads in knowledge tasks with an average score of 68.5 vs 30.8.

Which is better for coding, DeepSeek V3.1 or Llama 3.1 405B?

Llama 3.1 405B leads in coding with an average score of 62 vs 25.

Which is better for math, DeepSeek V3.1 or Llama 3.1 405B?

Llama 3.1 405B leads in math with an average score of 69 vs 32.

Which is better for reasoning, DeepSeek V3.1 or Llama 3.1 405B?

Llama 3.1 405B leads in reasoning with an average score of 67 vs 30.