Claude Sonnet 4.5 Benchmark Scores & Performance

Benchmark analysis of Claude Sonnet 4.5 by Anthropic across 14 tests.

Creator

Anthropic

Source Type

Proprietary

Reasoning

Non-Reasoning

Context Window

1M

Overall Score

74#15 of 88

Knowledge Benchmarks

MMLU
95
GPQA
93
SuperGPQA
91
OpenBookQA
89

Coding Benchmarks

HumanEval
87

Mathematics Benchmarks

AIME 2023
97
AIME 2024
99
AIME 2025
98
HMMT Feb 2023
93
HMMT Feb 2024
95
HMMT Feb 2025
94
BRUMO 2025
96

Reasoning Benchmarks

SimpleQA
91
MuSR
89

Frequently Asked Questions

How does Claude Sonnet 4.5 perform overall in AI benchmarks?

Claude Sonnet 4.5 ranks #15 out of 88 models with an overall score of 74. It is created by Anthropic and features a 1M context window.

Is Claude Sonnet 4.5 good for knowledge and understanding?

Claude Sonnet 4.5 ranks #15 out of 88 models in knowledge and understanding benchmarks with an average score of 92. There are stronger options in this category.

Is Claude Sonnet 4.5 good for coding and programming?

Claude Sonnet 4.5 ranks #15 out of 88 models in coding and programming benchmarks with an average score of 87. There are stronger options in this category.

Is Claude Sonnet 4.5 good for mathematics?

Claude Sonnet 4.5 ranks #15 out of 88 models in mathematics benchmarks with an average score of 96. There are stronger options in this category.

Is Claude Sonnet 4.5 good for reasoning and logic?

Claude Sonnet 4.5 ranks #15 out of 88 models in reasoning and logic benchmarks with an average score of 90. There are stronger options in this category.

What is the context window size of Claude Sonnet 4.5?

Claude Sonnet 4.5 has a context window of 1M tokens, which determines how much text it can process in a single interaction.