benchlm.ai

GPT-5.1-Codex-Max vs Qwen3 235B 2507 (Reasoning)

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 31 (46 point difference).GPT-5.1-Codex-Max wins 4 out of 4 categories.

GPT-5.1-Codex-Max

CreatorOpenAI
TypeProprietary
Context400K
Score77

Qwen3 235B 2507 (Reasoning)

CreatorAlibaba
TypeOpen Weight
Context128K
Score31

Knowledge

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

95

Qwen3 235B 2507 (Reasoning)

37.8

98
MMLU
40
96
GPQA
39
94
SuperGPQA
37
92
OpenBookQA
35

Coding

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

94

Qwen3 235B 2507 (Reasoning)

32

94
HumanEval
32

Mathematics

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

97.1

Qwen3 235B 2507 (Reasoning)

39

99
AIME 2023
40
99
AIME 2024
42
98
AIME 2025
41
95
HMMT Feb 2023
36
97
HMMT Feb 2024
38
96
HMMT Feb 2025
37
96
BRUMO 2025
39

Reasoning

GPT-5.1-Codex-Max

GPT-5.1-Codex-Max

93

Qwen3 235B 2507 (Reasoning)

37

94
SimpleQA
38
92
MuSR
36

Frequently Asked Questions

Which is better, GPT-5.1-Codex-Max or Qwen3 235B 2507 (Reasoning)?

GPT-5.1-Codex-Max scores higher overall with 77 vs 31, a difference of 46 points across all benchmarks.

Which is better for knowledge tasks, GPT-5.1-Codex-Max or Qwen3 235B 2507 (Reasoning)?

GPT-5.1-Codex-Max leads in knowledge tasks with an average score of 95 vs 37.8.

Which is better for coding, GPT-5.1-Codex-Max or Qwen3 235B 2507 (Reasoning)?

GPT-5.1-Codex-Max leads in coding with an average score of 94 vs 32.

Which is better for math, GPT-5.1-Codex-Max or Qwen3 235B 2507 (Reasoning)?

GPT-5.1-Codex-Max leads in math with an average score of 97.1 vs 39.

Which is better for reasoning, GPT-5.1-Codex-Max or Qwen3 235B 2507 (Reasoning)?

GPT-5.1-Codex-Max leads in reasoning with an average score of 93 vs 37.

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