Claude Sonnet 4.5 vs Moonshot v1

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

Quick Verdict

Claude Sonnet 4.5 wins overall with a score of 74 vs 44 (30 point difference).Claude Sonnet 4.5 wins 4 out of 4 categories.

Knowledge

Claude Sonnet 4.5

Claude Sonnet 4.5

92

Moonshot v1

50.8

95
MMLU
53
93
GPQA
52
91
SuperGPQA
50
89
OpenBookQA
48

Coding

Claude Sonnet 4.5

Claude Sonnet 4.5

87

Moonshot v1

45

87
HumanEval
45

Mathematics

Claude Sonnet 4.5

Claude Sonnet 4.5

96

Moonshot v1

52

97
AIME 2023
53
99
AIME 2024
55
98
AIME 2025
54
93
HMMT Feb 2023
49
95
HMMT Feb 2024
51
94
HMMT Feb 2025
50
96
BRUMO 2025
52

Reasoning

Claude Sonnet 4.5

Claude Sonnet 4.5

90

Moonshot v1

50

91
SimpleQA
51
89
MuSR
49

Frequently Asked Questions

Which is better, Claude Sonnet 4.5 or Moonshot v1?

Claude Sonnet 4.5 scores higher overall with 74 vs 44, a difference of 30 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.5 or Moonshot v1?

Claude Sonnet 4.5 leads in knowledge tasks with an average score of 92 vs 50.8.

Which is better for coding, Claude Sonnet 4.5 or Moonshot v1?

Claude Sonnet 4.5 leads in coding with an average score of 87 vs 45.

Which is better for math, Claude Sonnet 4.5 or Moonshot v1?

Claude Sonnet 4.5 leads in math with an average score of 96 vs 52.

Which is better for reasoning, Claude Sonnet 4.5 or Moonshot v1?

Claude Sonnet 4.5 leads in reasoning with an average score of 90 vs 50.