benchlm.ai

GPT-5.3 Codex vs Qwen2.5-72B

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

Quick Verdict

GPT-5.3 Codex wins overall with a score of 85 vs 65 (20 point difference).GPT-5.3 Codex wins 4 out of 4 categories.

GPT-5.3 Codex

CreatorOpenAI
TypeProprietary
Context400K
Score85

Qwen2.5-72B

CreatorAlibaba
TypeOpen Weight
Context128K
Score65

Knowledge

GPT-5.3 Codex

GPT-5.3 Codex

96

Qwen2.5-72B

80.8

99
MMLU
83
97
GPQA
82
95
SuperGPQA
80
93
OpenBookQA
78

Coding

GPT-5.3 Codex

GPT-5.3 Codex

95

Qwen2.5-72B

75

95
HumanEval
75

Mathematics

GPT-5.3 Codex

GPT-5.3 Codex

97.1

Qwen2.5-72B

83

99
AIME 2023
84
99
AIME 2024
86
98
AIME 2025
85
95
HMMT Feb 2023
80
97
HMMT Feb 2024
82
96
HMMT Feb 2025
81
96
BRUMO 2025
83

Reasoning

GPT-5.3 Codex

GPT-5.3 Codex

94

Qwen2.5-72B

79

95
SimpleQA
80
93
MuSR
78

Frequently Asked Questions

Which is better, GPT-5.3 Codex or Qwen2.5-72B?

GPT-5.3 Codex scores higher overall with 85 vs 65, a difference of 20 points across all benchmarks.

Which is better for knowledge tasks, GPT-5.3 Codex or Qwen2.5-72B?

GPT-5.3 Codex leads in knowledge tasks with an average score of 96 vs 80.8.

Which is better for coding, GPT-5.3 Codex or Qwen2.5-72B?

GPT-5.3 Codex leads in coding with an average score of 95 vs 75.

Which is better for math, GPT-5.3 Codex or Qwen2.5-72B?

GPT-5.3 Codex leads in math with an average score of 97.1 vs 83.

Which is better for reasoning, GPT-5.3 Codex or Qwen2.5-72B?

GPT-5.3 Codex leads in reasoning with an average score of 94 vs 79.

Related Comparisons

GPT-5.3 Codex vs GPT-5.4GPT-5.3 Codex vs Gemini 3.1 ProGPT-5.3 Codex vs Claude Opus 4.6GPT-5.3 Codex vs Grok 4.1GPT-5.3 Codex vs GPT-5.2GPT-5.3 Codex vs GPT-5.2-Codex