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AI models

xai

Grok 4.3 Beta

AI model Released Apr 17, 2026

Open weights: No^*

Capability & preference

General capability · ECI

A cross-benchmark capability estimate. Index points, not a percentage; intervals show uncertainty.

Grok 4.3 Beta 150.0^* Grok 4.3 Beta · 95% interval 148.1–152.0

Run it locally

Inference · memory estimate

Grok 4.3 Beta

Closed weights. No supported local deployment or GPU requirement is published.

Capabilities

Open weights: No^*

System configuration

Detailed specifications

Specifications · 4 fields

Access model: Hosted access (no API)^*
Open weights: No^*
Organization: xAI^*
Organization country: United States of America^*

* Provisional data