Grok 4 Fast (Non-Reasoning)

Release Date: 9/19/2025

Accuracy (Average)

50.44%

Latency (Average)

54.36s

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%

± 0.97
67/ 116

0.0%

± 1.97
60/ 68

0.0%

± 1.87
25/ 65

0.0%

± 0.87
78/ 80

0.0%

± 2.43
59/ 61

0.0%

± 0.78
58/ 122

0.0%

± 2.43
88/ 116

0.0%

± 2.85
44/ 55

0.0%

± 1.15
100/ 122

0.0%

± 0.47
74/ 119

0.0%

± 0.43
97/ 115

0.0%

± 1.16
64/ 76
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