Grok 4.1 Fast (Reasoning)

Release Date: 11/19/2025

Accuracy (Average)

49.91%

Latency (Average)

291.95s

Avg. Cost (In/Out)

0.2 / 0.5

Context Window

2M

Max Output Tokens

2M

Input Modality

Hyperparameter settings
Default Provider : xAI

Temperature

0.7

Top P

0.95

Top K

Default

Max Output Tokens

2,000,000

Benchmarks

Accuracy

Rankings

0.0%

± 0.93
13/ 108

0.0%

± 1.99
56/ 60

0.0%

± 1.87
23/ 60

0.0%

± 0.95
68/ 76

0.0%

± 1.96
30/ 33

0.0%

± 3.02
44/ 57

0.0%

± 0.86
33/ 114

0.0%

± 1.20
42/ 47

0.0%

± 1.85
28/ 108

0.0%

± 1.75
45/ 54

0.0%

± 1.09
42/ 113

0.0%

± 0.46
41/ 111

0.0%

± 0.36
39/ 107

0.0%

± 1.07
42/ 73

0.0%

± 2.21
47/ 50
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