Grok 4 vs Llama 3.1 405B

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

Quick Verdict

Grok 4 wins overall with a score of 69 vs 58 (11 point difference).Grok 4 wins 4 out of 4 categories.

Knowledge

Grok 4

Grok 4

84.8

Llama 3.1 405B

68.5

87
MMLU
70
86
GPQA
70
84
SuperGPQA
68
82
OpenBookQA
66

Coding

Grok 4

Grok 4

79

Llama 3.1 405B

62

79
HumanEval
62

Mathematics

Grok 4

Grok 4

86.6

Llama 3.1 405B

69

87
AIME 2023
70
89
AIME 2024
72
88
AIME 2025
71
84
HMMT Feb 2023
66
86
HMMT Feb 2024
68
85
HMMT Feb 2025
67
87
BRUMO 2025
69

Reasoning

Grok 4

Grok 4

82

Llama 3.1 405B

67

83
SimpleQA
68
81
MuSR
66

Frequently Asked Questions

Which is better, Grok 4 or Llama 3.1 405B?

Grok 4 scores higher overall with 69 vs 58, a difference of 11 points across all benchmarks.

Which is better for knowledge tasks, Grok 4 or Llama 3.1 405B?

Grok 4 leads in knowledge tasks with an average score of 84.8 vs 68.5.

Which is better for coding, Grok 4 or Llama 3.1 405B?

Grok 4 leads in coding with an average score of 79 vs 62.

Which is better for math, Grok 4 or Llama 3.1 405B?

Grok 4 leads in math with an average score of 86.6 vs 69.

Which is better for reasoning, Grok 4 or Llama 3.1 405B?

Grok 4 leads in reasoning with an average score of 82 vs 67.