Claude Opus 5

Release Date: 7/22/2026

Vals Index

Accuracy (Vals Index)

74.82% ± 1.35

Latency (Vals Index)

1182.44s

Cost/Test (Vals Index)

$8.54

Context Window

1M

Max Output Tokens

128k

Input Modality

Hyperparameter settings
Default Provider : Anthropic

Temperature

1

Top P

Default

Top K

Default

Max Output Tokens

128,000

Compute Effort

max

Show scores with fallbacks counted as failures

Benchmarks

Accuracy

Rankings

0.0%

± 1.35
2/ 40

0.0%

± 1.24
2/ 29

0.0%

± 4.37
1/ 33

0.0%

± 0.87
1/ 126

0.0%

± 2.54
18/ 20

0.0%

± 2.24
2/ 28

0.0%

± 0.08
1/ 40

0.0%

± 3.46
1/ 27

0.0%

± 1.99
1/ 76

0.0%

± 1.92
1/ 75

0.0%

± 0.88
1/ 90

0.0%

± 4.16
1/ 53

0.0%

± 3.29
17/ 71

0.0%

± 1.10
1/ 23

0.0%

± 0.83
18/ 132

0.0%

± 3.00
2/ 76

0.0%

± 1.65
7/ 27

0.0%

± 1.24
4/ 126

0.0%

± 8.33
1/ 60

0.0%

± 0.91
2/ 131

0.0%

± 0.42
4/ 129

0.0%

± 0.28
1/ 125

0.0%

± 0.72
1/ 86

0.0%

± 1.21
1/ 34

0.0%

± 4.58
6/ 20

0.0%

± 0.76
1/ 75

0.0%

± 0.99
2/ 45
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