Grok 4.3 Released as xAI's Fastest, Most Intelligent Model

Core summary

One sentence to understand this update

Grok 4.3 is now live on the xAI API, touted as their fastest and most intelligent model to date, leading leaderboards in agentic tool calling, instruction following, and enterprise domain applications.

Impact & opportunity

What this could mean

This advancement provides developers with a highly capable new model for building advanced agents and applications that require superior tool integration and complex instruction execution.