Grok 4.1 Fast (Reasoning)

Release Date: 11/19/2025

Accuracy (Average)

50.06%

Latency (Average)

280.11s

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
14/ 110

0.0%

± 1.99
58/ 62

0.0%

± 1.87
24/ 61

0.0%

± 0.95
70/ 78

0.0%

± 1.96
32/ 35

0.0%

± 3.02
46/ 59

0.0%

± 0.86
33/ 116

0.0%

± 1.20
50/ 55

0.0%

± 1.85
30/ 110

0.0%

± 1.75
45/ 54

0.0%

± 1.09
44/ 115

0.0%

± 0.46
42/ 113

0.0%

± 0.36
41/ 109

0.0%

± 1.07
43/ 74

0.0%

± 2.21
50/ 53
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