Grok 4.3 Released on xAI API, Tops Agentic Tool Calling Leaderboards

Core summary

One sentence to understand this update

Grok 4.3 has been released on the xAI API, touted as their fastest and most intelligent model, leading leaderboards in agentic tool calling and instruction following.

Impact & opportunity

What this could mean

This release provides builders with a high-performance, intelligent model on the xAI API, offering significant capabilities for developing sophisticated AI agents and applications requiring precise tool use.