Claude 3.5 Sonnet vs Grok 4

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

Quick Verdict

Grok 4 wins overall with a score of 69 vs 55 (14 point difference).Grok 4 wins 4 out of 4 categories.

Knowledge

Grok 4

Claude 3.5 Sonnet

63.5

Grok 4

84.8

65
MMLU
87
65
GPQA
86
63
SuperGPQA
84
61
OpenBookQA
82

Coding

Grok 4

Claude 3.5 Sonnet

57

Grok 4

79

57
HumanEval
79

Mathematics

Grok 4

Claude 3.5 Sonnet

64

Grok 4

86.6

65
AIME 2023
87
67
AIME 2024
89
66
AIME 2025
88
61
HMMT Feb 2023
84
63
HMMT Feb 2024
86
62
HMMT Feb 2025
85
64
BRUMO 2025
87

Reasoning

Grok 4

Claude 3.5 Sonnet

62

Grok 4

82

63
SimpleQA
83
61
MuSR
81

Frequently Asked Questions

Which is better, Claude 3.5 Sonnet or Grok 4?

Grok 4 scores higher overall with 69 vs 55, a difference of 14 points across all benchmarks.

Which is better for knowledge tasks, Claude 3.5 Sonnet or Grok 4?

Grok 4 leads in knowledge tasks with an average score of 84.8 vs 63.5.

Which is better for coding, Claude 3.5 Sonnet or Grok 4?

Grok 4 leads in coding with an average score of 79 vs 57.

Which is better for math, Claude 3.5 Sonnet or Grok 4?

Grok 4 leads in math with an average score of 86.6 vs 64.

Which is better for reasoning, Claude 3.5 Sonnet or Grok 4?

Grok 4 leads in reasoning with an average score of 82 vs 62.