grok-3-fast
by xAI — Price updated 2026-04-04
Pricing ($/1M tokens)
Input
$3.00
Output
$15.00
Cache Read
$0.75
Specifications
Context Window
131,072
Input
text
Output
text
About This Model
grok-3-fast is a premium language model from xAI.
It supports a context window of 131K tokens.
At $3.00/1M input tokens, it is positioned at the premium end of the pricing spectrum.
xAI offers 62 models in total, spanning different price points and capability levels.