Claude Haiku 4.5 (Thinking)

Release Date: 10/15/2025

Vals Index

Accuracy (Vals Index)

40.90% ± 1.02

Latency (Vals Index)

376.93s

Cost/Test (Vals Index)

$0.56

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

0.0%

± 1.02
24/ 30

0.0%

± 0.93
17/ 21

0.0%

± 1.06
18/ 21

0.0%

± 0.96
50/ 116

0.0%

± 0.56
23/ 28

0.0%

± 2.00
53/ 68

0.0%

± 1.90
10/ 65

0.0%

± 0.96
38/ 80

0.0%

± 3.13
46/ 61

0.0%

± 0.91
84/ 122

0.0%

± 3.13
51/ 66

0.0%

± 2.47
68/ 116

0.0%

± 2.52
37/ 55

0.0%

± 1.11
109/ 122

0.0%

± 0.49
54/ 119

0.0%

± 0.48
78/ 115

0.0%

± 1.20
74/ 76

0.0%

± 0.00
19/ 24

0.0%

± 2.11
49/ 64

0.0%

± 1.95
28/ 35
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