GPT-5.1 vs Llama 4 Behemoth

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

Quick Verdict

GPT-5.1 wins overall with a score of 76 vs 39 (37 point difference).GPT-5.1 wins 4 out of 4 categories.

Knowledge

GPT-5.1

GPT-5.1

94

Llama 4 Behemoth

45.8

97
MMLU
48
95
GPQA
47
93
SuperGPQA
45
91
OpenBookQA
43

Coding

GPT-5.1

GPT-5.1

89

Llama 4 Behemoth

40

89
HumanEval
40

Mathematics

GPT-5.1

GPT-5.1

97.1

Llama 4 Behemoth

47

99
AIME 2023
48
99
AIME 2024
50
98
AIME 2025
49
95
HMMT Feb 2023
44
97
HMMT Feb 2024
46
96
HMMT Feb 2025
45
96
BRUMO 2025
47

Reasoning

GPT-5.1

GPT-5.1

92

Llama 4 Behemoth

45

93
SimpleQA
46
91
MuSR
44

Frequently Asked Questions

Which is better, GPT-5.1 or Llama 4 Behemoth?

GPT-5.1 scores higher overall with 76 vs 39, a difference of 37 points across all benchmarks.

Which is better for knowledge tasks, GPT-5.1 or Llama 4 Behemoth?

GPT-5.1 leads in knowledge tasks with an average score of 94 vs 45.8.

Which is better for coding, GPT-5.1 or Llama 4 Behemoth?

GPT-5.1 leads in coding with an average score of 89 vs 40.

Which is better for math, GPT-5.1 or Llama 4 Behemoth?

GPT-5.1 leads in math with an average score of 97.1 vs 47.

Which is better for reasoning, GPT-5.1 or Llama 4 Behemoth?

GPT-5.1 leads in reasoning with an average score of 92 vs 45.