Claude Opus 4.5 (Thinking)

Release Date: 11/24/2025

Benchmarked by Vals Logo
Vals Index

Avg. Accuracy

67.29%

Latency

782.35s

Cost (In/Out)

5 / 25

Context Window

200k

Max Output Tokens

64k

Input Modality

Hyperparameter settings
Default Provider : Anthropic

Temperature

1

Top P

Default

Top K

Default

Max Output Tokens

64,000

Compute Effort

high

Benchmarks

Accuracy

Rankings

Vals Index

0.0%

3/ 28

CaseLaw (v2)

0.0%

18/ 63

CorpFin

0.0%

9/ 82

MortgageTax

0.0%

7/ 58

ProofBench

0.0%

2/ 15

SAGE

0.0%

1/ 37

TaxEval (v2)

0.0%

8/ 91

AIME

0.0%

6/ 82

GPQA

0.0%

7/ 85

IOI

0.0%

9/ 43

LiveCodeBench

0.0%

12/ 90

LegalBench

0.0%

6/ 104

MedQA

0.0%

8/ 90

MGSM

0.0%

1/ 75

MMLU Pro

0.0%

6/ 84

MMMU

0.0%

7/ 55

SWE-bench

0.0%

5/ 50

Academic Benchmarks
Proprietary Benchmarks (contact us to get access)

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