Claude 4.5 Sonnet

Reasoning

Creator

Anthropic

Released

2025-09-29

Intelligence

36.4

Artificial Analysis Index

Coding

52.1

Artificial Analysis Index

In $/1M

$3.00

input tokens

Out $/1M

$15.00

output tokens

Blended $/1M

$6.00

3:1 blended

Speed

0

tokens / sec

Benchmark breakdown

Independent evaluation scores, normalized to 0–100.

GPQA Diamond
83
Humanity’s Last Exam
17
MMLU-Pro
88
SciCode
45
LiveCodeBench
71
MATH-500
AIME 2025
88
τ²-Bench (agentic)
78
Terminal-Bench Hard
36
IFBench
57
Via Artificial Analysis
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