Model releaseLimited global significanceConfirmed confidence
xAI releases Grok 4
xAI releases Grok 4, its fourth-generation closed language model, with stronger cross-domain generalization and real-time web search retrieval.
What happened
Event details
Released on July 11, 2025, Grok 4 is a closed autoregressive Transformer. xAI did not disclose its parameter count and positioned the release around broader generalization and improved semantic retrieval from live web sources.
Assessment
Why it matters
Grok 4 advances xAI's flagship model line and its integration of general-purpose reasoning with real-time information retrieval.
45/100Global significance score. Regional effects are recorded only when the evidence supports a meaningful difference.
Availability
Access notes
Available as a closed xAI model.