Release dates
— Grok 4 and Grok 4 Heavy launched. ↗
Grok 4
Scaled reinforcement learning beyond Grok 3 Reasoning with native tools, web search, and X search.
MODEL NUMBER134
- First public date
- 2025-07-09
- Organization
- SpaceXAI
- Family
- Grok
01
Specifications
Only published specifications are shown.
- Input modalities
- Text · Image
- Open weights
- No
- Status
- Legacy
02
Overview
PreviousGrok 3— · — ctx
CurrentGrok 4— · — ctx
04
Architecture & capabilities
Model capabilities
ReasoningTool use
Connected tools
Web searchX search
05
Release history
Grok 4 and Grok 4 Heavy launched.
View source06
Related models
Select a card to view the related model.
07
Sources
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