Grok is the AI chatbot developed by xAI, Elon Musk's company. Integrated into X (formerly Twitter), Grok has real-time access to X posts and web search. With 64 million monthly users, Grok is a major player in AI search.
What is Grok?
Grok is the artificial intelligence chatbot developed by xAI, the company founded by Elon Musk. What makes Grok unique is its deep integration into X (formerly Twitter) — giving it real-time access to posts, trends and public discourse on the platform.
Grok also features advanced web search (Live Search) that autonomously and intelligently queries the internet, X posts, news and RSS feeds.
Grok Models
- Grok 3 (February 2025) — Trained with 10× more compute than Grok 2, outperforms GPT-4o in math and science
- Grok 4 / Grok 4 Heavy (July 2025) — Flagship models outperforming rivals on benchmarks
- Grok 4.1 (November 2025) — Optimized model with Agent Tools API
- Grok Imagine — Image and short video generation
Grok by the Numbers
- 64 million monthly active users
- 151 million total monthly visitors
- Mobile downloads surged 10× after Grok 3 launch
- US daily active users jumped 260% after Grok 3
- Demographics: 60% male, 51% under 35
Grok and AI Visibility
Grok is one of the most capable AI search engines. Its agentic search automatically decides when to search, what to search for and how deep to go. Its unique access to X/Twitter data makes it a particularly important channel for brands with a strong social media presence.
A GEO audit must include Grok for complete coverage. AI Labs Audit integrates xAI/Grok models in its a wide selection of tested models. Discover our tutorial.