ImprovementModels ·
Grok 4.3
Try in the builder
Create an agent or open an existing agent in the builder, then follow the steps below. Model and feature availability may depend on your plan.
What it does
xAI's Grok 4.3 became selectable in the builder.
Before this
An addition to the selector. It was the first Grok 4.3; Grok 4 and the 4.1 Fast variants were already there.
Why it matters
Strong on current-events reasoning, which matters for agents that work with fresh information rather than a fixed knowledge base.
The specs
- Context
- 1,000,000 tokens.
- Input
- Text and images.
- Actions
- Supported.
- Reasoning
- Fast ($$), Smart ($$$), or Smartest ($$$$).
- Plans
- Every plan.
xAI's models are trained with unusually fresh data, which is the reason to pick one for an agent working on current events rather than on a fixed knowledge base.