xAI

Popular

xAI, founded by Elon Musk, develops the Grok series of models. Grok-2 and Grok-3 offer competitive performance with real-time knowledge from the X platform, a unique personality, and strong reasoning. Available via xAI API with multimodal capabilities.

Official Website Documentation

Endpoints

POST

Chat Completions

/v1/chat/completions

Chat with Grok models.

Streaming

Vision

Function Calling

Models

grok-3-betagrok-2grok-2-vision

Pricing

Model	Input Price	Output Price	Context Window
Grok 3 Beta	$5.00	$15.00	131.1K
Grok 2	$2.00	$8.00	131.1K

Capabilities

Streaming

Function Calling

Vision

Image Input

Long Context

Reasoning

Try it in Playground

Test xAI APIs directly in our interactive playground with your own API key.

Try it in Playground

xAI

Endpoints

Chat Completions

Capabilities

Try it in Playground

Overview

xAI

Endpoints

Chat Completions

Capabilities

Try it in Playground

Overview