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.

xAI (Grok) models comparison

FeatureGrok 3 BetaGrok Beta
DescriptionLatest beta modelStable model
Best forComplex reasoning, creative tasksGeneral reasoning, analysis
Vision capabilityNoNo
Tool callsNoNo
Context window128K tokens128K tokens
Max output15K tokens15K tokens
Knowledge cutoffNot disclosedNot disclosed
API model keyx-ai/grok-3-betax-ai/grok-beta
Grok-beta

Notes

  • 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