benchlm.ai

GPT-5.1-Codex-Max vs Mistral Large 3

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

Quick Verdict

GPT-5.1-Codex-Max wins overall with a score of 77 vs 61 (16 point difference).GPT-5.1-Codex-Max wins 4 out of 4 categories.

GPT-5.1-Codex-Max

CreatorOpenAI
TypeProprietary
Context400K
Score77

Mistral Large 3

CreatorMistral
TypeOpen Weight
Context128K
Score61

Knowledge

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

95

Mistral Large 3

73.8

98
MMLU
76
96
GPQA
75
94
SuperGPQA
73
92
OpenBookQA
71

Coding

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

94

Mistral Large 3

68

94
HumanEval
68

Mathematics

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

97.1

Mistral Large 3

75

99
AIME 2023
76
99
AIME 2024
78
98
AIME 2025
77
95
HMMT Feb 2023
72
97
HMMT Feb 2024
74
96
HMMT Feb 2025
73
96
BRUMO 2025
75

Reasoning

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

93

Mistral Large 3

72

94
SimpleQA
73
92
MuSR
71

Frequently Asked Questions

Which is better, GPT-5.1-Codex-Max or Mistral Large 3?

GPT-5.1-Codex-Max scores higher overall with 77 vs 61, a difference of 16 points across all benchmarks.

Which is better for knowledge tasks, GPT-5.1-Codex-Max or Mistral Large 3?

GPT-5.1-Codex-Max leads in knowledge tasks with an average score of 95 vs 73.8.

Which is better for coding, GPT-5.1-Codex-Max or Mistral Large 3?

GPT-5.1-Codex-Max leads in coding with an average score of 94 vs 68.

Which is better for math, GPT-5.1-Codex-Max or Mistral Large 3?

GPT-5.1-Codex-Max leads in math with an average score of 97.1 vs 75.

Which is better for reasoning, GPT-5.1-Codex-Max or Mistral Large 3?

GPT-5.1-Codex-Max leads in reasoning with an average score of 93 vs 72.

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