benchlm.ai

GPT-5 (medium) vs Grok 4

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

Quick Verdict

GPT-5 (medium) wins overall with a score of 70 vs 69 (1 point difference).GPT-5 (medium) wins 4 out of 4 categories.

GPT-5 (medium)

CreatorOpenAI
TypeProprietary
Context128K
Score70

Grok 4

CreatorxAI
TypeProprietary
Context128K
Score69

Knowledge

GPT-5 (medium)

GPT-5 (medium)

88

Grok 4

84.8

91
MMLU
87
89
GPQA
86
87
SuperGPQA
84
85
OpenBookQA
82

Coding

GPT-5 (medium)

GPT-5 (medium)

83

Grok 4

79

83
HumanEval
79

Mathematics

GPT-5 (medium)

GPT-5 (medium)

92

Grok 4

86.6

93
AIME 2023
87
95
AIME 2024
89
94
AIME 2025
88
89
HMMT Feb 2023
84
91
HMMT Feb 2024
86
90
HMMT Feb 2025
85
92
BRUMO 2025
87

Reasoning

GPT-5 (medium)

GPT-5 (medium)

86

Grok 4

82

87
SimpleQA
83
85
MuSR
81

Frequently Asked Questions

Which is better, GPT-5 (medium) or Grok 4?

GPT-5 (medium) scores higher overall with 70 vs 69, a difference of 1 points across all benchmarks.

Which is better for knowledge tasks, GPT-5 (medium) or Grok 4?

GPT-5 (medium) leads in knowledge tasks with an average score of 88 vs 84.8.

Which is better for coding, GPT-5 (medium) or Grok 4?

GPT-5 (medium) leads in coding with an average score of 83 vs 79.

Which is better for math, GPT-5 (medium) or Grok 4?

GPT-5 (medium) leads in math with an average score of 92 vs 86.6.

Which is better for reasoning, GPT-5 (medium) or Grok 4?

GPT-5 (medium) leads in reasoning with an average score of 86 vs 82.

Related Comparisons

GPT-5 (medium) vs GPT-5.4GPT-5 (medium) vs Gemini 3.1 ProGPT-5 (medium) vs Claude Opus 4.6GPT-5 (medium) vs GPT-5.3 CodexGPT-5 (medium) vs Grok 4.1GPT-5 (medium) vs GPT-5.2