Claude Haiku 4.5 (Thinking)

Release Date: 10/15/2025

Benchmarked by Vals Logo
Vals Index

Accuracy (Vals Index)

54.17% ± 2.02

Latency (Vals Index)

244.28s

Cost/Test (Vals Index)

$0.26

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

Benchmarks

Accuracy

Rankings

Vals Index

0.0%

± 2.02

17/ 32

Vals Multimodal Index

0.0%

± 1.59

14/ 22

CaseLaw (v2)

0.0%

± 0.92

22/ 37

CorpFin

0.0%

± 0.96

28/ 88

Finance Agent (v1.1)

0.0%

± 2.85

18/ 36

MedCode

0.0%

± 2.00

35/ 44

MedScribe

0.0%

± 1.90

5/ 44

MortgageTax

0.0%

± 0.96

26/ 63

SAGE

0.0%

± 3.13

30/ 43

TaxEval (v2)

0.0%

± 0.91

63/ 96

Vibe Code Bench

0.0%

± 3.13

15/ 18

AIME

0.0%

± 0.91

36/ 88

GPQA

0.0%

± 2.47

46/ 91

IOI

0.0%

± 2.51

29/ 46

LiveCodeBench

0.0%

± 1.11

85/ 98

LegalBench

0.0%

± 0.49

39/ 110

MedQA

0.0%

± 0.37

73/ 94

MMLU Pro

0.0%

± 0.48

57/ 89

MMMU

0.0%

± 1.20

58/ 60

SWE-bench

0.0%

± 2.07

17/ 58

Terminal-Bench 2.0

0.0%

± 5.18

17/ 43

Academic Benchmarks
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