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
39/ 45

0.0%

± 0.93
29/ 32

0.0%

± 1.06
29/ 34

0.0%

± 0.96
66/ 131

0.0%

± 0.56
38/ 44

0.0%

± 2.00
65/ 80

0.0%

± 1.90
17/ 80

0.0%

± 0.96
50/ 92

0.0%

± 3.13
59/ 73

0.0%

± 0.91
99/ 136

0.0%

± 3.13
66/ 81

0.0%

± 2.47
81/ 129

0.0%

± 2.52
42/ 60

0.0%

± 1.11
121/ 134

0.0%

± 0.49
67/ 133

0.0%

± 0.48
93/ 129

0.0%

± 1.20
85/ 87

0.0%

± 0.00
30/ 36

0.0%

± 2.11
63/ 79

0.0%

± 1.95
44/ 50
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