Claude Sonnet 4.6

Release Date: 2/17/2026

Benchmarked by Vals Logo
Vals Index

The latest model in Anthropic's Claude Sonnet series

Avg. Accuracy

70.19%

Latency

699.60s

Cost (In/Out)

3 / 15

Context Window

200k

Max Output Tokens

128k

Input Modality

Hyperparameter settings
Default Provider : Anthropic

Temperature

1

Top P

Default

Top K

Default

Max Output Tokens

128,000

Thinking

On

Compute Effort

max

Benchmarks

Accuracy

Rankings

Vals Index

0.0%

1/ 30

CaseLaw (v2)

0.0%

6/ 65

CorpFin

0.0%

9/ 83

MortgageTax

0.0%

7/ 60

ProofBench

0.0%

2/ 16

SAGE

0.0%

7/ 39

TaxEval (v2)

0.0%

1/ 92

AIME

0.0%

12/ 83

GPQA

0.0%

9/ 86

LiveCodeBench

0.0%

18/ 91

LegalBench

0.0%

27/ 105

MedQA

0.0%

33/ 91

MMLU Pro

0.0%

5/ 83

MMMU

0.0%

6/ 56

SWE-bench

0.0%

3/ 51

Academic Benchmarks
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