Claude 4 Sonnet

by Anthropic

Released · 87 days after Claude 3.7 Sonnet

Benchmarks

Independent benchmark scores: the Intelligence Index and the individual evaluations behind it, grouped by skill.

Intelligence Index (previous version)18.9
Coding
LiveCodeBench
66%
Agentic & knowledge work
GDPval
10%
Terminal-Bench Hard
31%
τ²-Bench Telecom
65%
Science & reasoning
Humanity's Last Exam
11%
GPQA Diamond
78%
Long-context reasoning
70%
Knowledge
MMMU-Pro
62%
MMLU-Pro
84%
Math & instruction following
AIME 2025
74%
IFBench
55%

Available routes

No routes currently available — Claude 4 Sonnet isn't routed through the Opper gateway right now. It's tracked here for its release history.

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