Claude Haiku 4.5 vs Moonshot v1

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

Quick Verdict

Claude Haiku 4.5 wins overall with a score of 57 vs 44 (13 point difference).Claude Haiku 4.5 wins 4 out of 4 categories.

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

65.8

Moonshot v1

50.8

68
MMLU
53
67
GPQA
52
65
SuperGPQA
50
63
OpenBookQA
48

Coding

Claude Haiku 4.5

Claude Haiku 4.5

60

Moonshot v1

45

60
HumanEval
45

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

67

Moonshot v1

52

68
AIME 2023
53
70
AIME 2024
55
69
AIME 2025
54
64
HMMT Feb 2023
49
66
HMMT Feb 2024
51
65
HMMT Feb 2025
50
67
BRUMO 2025
52

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

64

Moonshot v1

50

65
SimpleQA
51
63
MuSR
49

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or Moonshot v1?

Claude Haiku 4.5 scores higher overall with 57 vs 44, a difference of 13 points across all benchmarks.

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

Claude Haiku 4.5 leads in knowledge tasks with an average score of 65.8 vs 50.8.

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

Claude Haiku 4.5 leads in coding with an average score of 60 vs 45.

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

Claude Haiku 4.5 leads in math with an average score of 67 vs 52.

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

Claude Haiku 4.5 leads in reasoning with an average score of 64 vs 50.