benchlm.ai

GPT-5.1-Codex-Max vs Nova Pro

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 32 (45 point difference).GPT-5.1-Codex-Max wins 4 out of 4 categories.

GPT-5.1-Codex-Max

CreatorOpenAI
TypeProprietary
Context400K
Score77

Nova Pro

CreatorNova AI
TypeProprietary
Context128K
Score32

Knowledge

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

95

Nova Pro

38.8

98
MMLU
41
96
GPQA
40
94
SuperGPQA
38
92
OpenBookQA
36

Coding

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

94

Nova Pro

33

94
HumanEval
33

Mathematics

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

97.1

Nova Pro

40

99
AIME 2023
41
99
AIME 2024
43
98
AIME 2025
42
95
HMMT Feb 2023
37
97
HMMT Feb 2024
39
96
HMMT Feb 2025
38
96
BRUMO 2025
40

Reasoning

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

93

Nova Pro

38

94
SimpleQA
39
92
MuSR
37

Frequently Asked Questions

Which is better, GPT-5.1-Codex-Max or Nova Pro?

GPT-5.1-Codex-Max scores higher overall with 77 vs 32, a difference of 45 points across all benchmarks.

Which is better for knowledge tasks, GPT-5.1-Codex-Max or Nova Pro?

GPT-5.1-Codex-Max leads in knowledge tasks with an average score of 95 vs 38.8.

Which is better for coding, GPT-5.1-Codex-Max or Nova Pro?

GPT-5.1-Codex-Max leads in coding with an average score of 94 vs 33.

Which is better for math, GPT-5.1-Codex-Max or Nova Pro?

GPT-5.1-Codex-Max leads in math with an average score of 97.1 vs 40.

Which is better for reasoning, GPT-5.1-Codex-Max or Nova Pro?

GPT-5.1-Codex-Max leads in reasoning with an average score of 93 vs 38.

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