benchlm.ai

GPT-5 mini vs Grok 3 [Beta]

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

Quick Verdict

GPT-5 mini wins overall with a score of 68 vs 33 (35 point difference).GPT-5 mini wins 4 out of 4 categories.

GPT-5 mini

CreatorOpenAI
TypeProprietary
Context128K
Score68

Grok 3 [Beta]

CreatorxAI
TypeProprietary
Context128K
Score33

Knowledge

GPT-5 mini

GPT-5 mini

85

Grok 3 [Beta]

39.8

88
MMLU
42
86
GPQA
41
84
SuperGPQA
39
82
OpenBookQA
37

Coding

GPT-5 mini

GPT-5 mini

80

Grok 3 [Beta]

34

80
HumanEval
34

Mathematics

GPT-5 mini

GPT-5 mini

89

Grok 3 [Beta]

41

90
AIME 2023
42
92
AIME 2024
44
91
AIME 2025
43
86
HMMT Feb 2023
38
88
HMMT Feb 2024
40
87
HMMT Feb 2025
39
89
BRUMO 2025
41

Reasoning

GPT-5 mini

GPT-5 mini

83

Grok 3 [Beta]

39

84
SimpleQA
40
82
MuSR
38

Frequently Asked Questions

Which is better, GPT-5 mini or Grok 3 [Beta]?

GPT-5 mini scores higher overall with 68 vs 33, a difference of 35 points across all benchmarks.

Which is better for knowledge tasks, GPT-5 mini or Grok 3 [Beta]?

GPT-5 mini leads in knowledge tasks with an average score of 85 vs 39.8.

Which is better for coding, GPT-5 mini or Grok 3 [Beta]?

GPT-5 mini leads in coding with an average score of 80 vs 34.

Which is better for math, GPT-5 mini or Grok 3 [Beta]?

GPT-5 mini leads in math with an average score of 89 vs 41.

Which is better for reasoning, GPT-5 mini or Grok 3 [Beta]?

GPT-5 mini leads in reasoning with an average score of 83 vs 39.

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