Grok 4 Fast

grok-4-fast

Modalities

Input

text

Output

text

Pricing

Cost per 1 million tokens

Input

$0.24

Output

$0.6

Model Specs

Context Window

2,000,000

Max Output

64,000

Release Date

2025-09-19

Knowledge Cutoff

2025-01

Capabilities

Reasoning

Tool Calling

Vision

Last Updated: 2025-09-19

Provider: