Grok-4

xAI grok-4

Model Information
Slug grok-4
Release Date July 9, 2025
Aliases grok-4
Organization
Name xAI
Description

Grok 4 is xAI's latest reasoning model with a 256k context window. It supports parallel tool calling, structured outputs, and both image and text inputs. Note that reasoning is not exposed, reasoning cannot be disabled, and the reasoning effort cannot be specified. Pricing increases once the total tokens in a given request is greater than 128k tokens. See more details on the [xAI docs](https://docs.x.ai/docs/models/grok-4-0709) Context: 256000

Available at 6 Providers
Provider Input Price ($/1M) Output Price ($/1M) Free
Poe $3.00 $15.00
Helicone $3.00 $15.00
FastRouter $3.00 $15.00
ZenMux $3.00 $15.00
Requesty $3.00 $15.00
OpenRouter $3.00 $15.00