Grok 4 Fast Reasoning

grok-4-fast-reasoning

STABLE

2,000,000 context

Starting at $0.4/M input tokens

Starting at $1/M output tokens

Streaming

Vision

Tools

Providers for Grok 4 Fast Reasoning

LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.

xAI

xai/grok-4-fast-reasoning

Context

2M

Input

$0.40

Output

$1.00

grok-4-fast-reasoning - LLM Gateway