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Claude Sonnet 4.6

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Claude Sonnet 4.6 is an AI model from Anthropic.

Publisher
Anthropic
Family
Claude
Context
1M
Input
Output
License
proprietary
Released
17 Feb 2026

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Notes

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Attribution

Attribution policy →
Context
1M
Input
$3.75
/1M tok
Output
$15
/1M tok
Blended
$6.56
#391/ 414/1M · 3:1
Speed
49
#186/ 414tok/s
Cache read
$0.30
0.08x input
Cache write
$3.75
1.00x input

Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter

Reported on 30 evals across 11 domains - best 92.2% on Infraresolutionbench · #1 of 35

Reported eval scores

30
Infraresolutionbench92.2
AutomationBench47.6
Ar Credit Release V147.2
Codenames1.4
MMMLU89.3
TaxEval v277.1
CorpFin v265.3
Finance Agent (v2)51
MortgageTax67.7
LiveBench - Coding80
Terminal-Bench (Hard)42.4
LiveBench - Reasoning86.4
LiveBench - Language77.7
LiveBench - Data Analysis76.1
LiveBench - Math86.5
IFBench42.4
LiveBench - Instruction Following63.9
LiveBench78.4
Vals Index60.3
Humanity's Last Exam (HLE)10.8
SciCode44.1
GPQA Diamond79.7
OSWorld-Verified72.1
τ²-bench (Tau²-bench)78.9
Vibe Code Bench v1.151.5
ProofBench45
FrontierMath32.4
Vals Multimodal Index60.8
SAGE46.6