xAI models

xAI (Grok) is a family of advanced large language models developed by xAI, designed for high performance and efficiency.

Using the API

Use the Chat completion API to call xAI models. See the pricing page for details.

Feature	Grok 3 Beta	Grok Beta
Description	Latest beta model	Stable model
Best for	Complex reasoning, creative tasks	General reasoning, analysis
Vision capability	No	No
Tool calls	No	No
Context window	128K tokens	128K tokens
Max output	15K tokens	15K tokens
Knowledge cutoff	Not disclosed	Not disclosed
API model key	`x-ai/grok-3-beta`	`x-ai/grok-beta` `Grok-beta`

Grok 3 Beta is the latest beta version, suitable for scenarios requiring the newest capabilities.
Grok Beta is the stable version, recommended for production use.
For more details, visit xAI Grok。

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