Model Family
Grok
xAI's LLM family — Grok-3, Grok-4 — with real-time X data and reasoning modes.
Definition
Grok is xAI's frontier LLM, integrated with X (Twitter) for real-time information access. Grok-3 introduced a 'Think' reasoning mode comparable to OpenAI o1; Grok-4 (2025) extends multimodality and tool use. Available via xAI API and the X premium app.
Common use cases
- Real-time Q&A
- Reasoning
- X/social analytics