xAI Grok 4.3 Beta Release: Everything You Need to Know
xAI has quietly rolled out Grok 4.3 Beta, its latest AI model, exclusively for SuperGrok Heavy subscribers on the $300 per month plan. The update is now live on web, iOS, and Android.
Early testers report impressive results, including generating professional SpaceX-style reports with charts, extracting audio from videos, and creating interactive dashboards using real-time X data and web information.
Key Features and Improvements in Grok 4.3 Beta
- Significant leap in advanced reasoning and complex workflow capabilities
- Enhanced multimodal features, including audio extraction from video
- Real-time integration with X (Twitter) data and web content
- Pro-level document generation with embedded charts and dashboards
- Available across web, iOS, and Android platforms
Elon Musk described the release as a "promising beta" with realistic expectations, continuing xAI's fast-paced development following Grok 4.20 in March 2026. AI expert Brian Roemmele highlighted the dramatic improvement in reasoning power.
Access and Availability
Grok 4.3 Beta is currently available only to SuperGrok Heavy users at $300/month. Wider access is expected in future updates.
This article is based on recent posts from X and will be updated as more user experiences and details emerge.