benchlm.ai

Claude 3.5 Sonnet vs Grok 3 [Beta]

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

Quick Verdict

Claude 3.5 Sonnet wins overall with a score of 55 vs 33 (22 point difference).Claude 3.5 Sonnet wins 4 out of 4 categories.

Claude 3.5 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score55

Grok 3 [Beta]

CreatorxAI
TypeProprietary
Context128K
Score33

Knowledge

Claude 3.5 Sonnet

Claude 3.5 Sonnet

63.5

Grok 3 [Beta]

39.8

65
MMLU
42
65
GPQA
41
63
SuperGPQA
39
61
OpenBookQA
37

Coding

Claude 3.5 Sonnet

Claude 3.5 Sonnet

57

Grok 3 [Beta]

34

57
HumanEval
34

Mathematics

Claude 3.5 Sonnet

Claude 3.5 Sonnet

64

Grok 3 [Beta]

41

65
AIME 2023
42
67
AIME 2024
44
66
AIME 2025
43
61
HMMT Feb 2023
38
63
HMMT Feb 2024
40
62
HMMT Feb 2025
39
64
BRUMO 2025
41

Reasoning

Claude 3.5 Sonnet

Claude 3.5 Sonnet

62

Grok 3 [Beta]

39

63
SimpleQA
40
61
MuSR
38

Frequently Asked Questions

Which is better, Claude 3.5 Sonnet or Grok 3 [Beta]?

Claude 3.5 Sonnet scores higher overall with 55 vs 33, a difference of 22 points across all benchmarks.

Which is better for knowledge tasks, Claude 3.5 Sonnet or Grok 3 [Beta]?

Claude 3.5 Sonnet leads in knowledge tasks with an average score of 63.5 vs 39.8.

Which is better for coding, Claude 3.5 Sonnet or Grok 3 [Beta]?

Claude 3.5 Sonnet leads in coding with an average score of 57 vs 34.

Which is better for math, Claude 3.5 Sonnet or Grok 3 [Beta]?

Claude 3.5 Sonnet leads in math with an average score of 64 vs 41.

Which is better for reasoning, Claude 3.5 Sonnet or Grok 3 [Beta]?

Claude 3.5 Sonnet leads in reasoning with an average score of 62 vs 39.

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