xAI releases Grok 4.6 model and Grok Build CLI

xAI has released Grok 4.6, a new artificial intelligence model that has reached the frontier level according to the Artificial Analysis Intelligence Index. The model is positioned to compete with high-end systems like GPT-5.6 Sol.

Alongside the model, xAI introduced the Grok Build CLI, a terminal-based agent designed for software professionals. This tool manages development workflows through features such as project planning, multi-file refactoring, and automated testing. It supports both interactive terminal user interfaces and headless modes for integration into CI/CD pipelines.

Key technical capabilities of the Grok Build CLI include memory persistence, Git integration, and support for Model Context Protocol (MCP) servers. The system can spawn parallel subagents for research or testing and allows for diff-based workflows where edits are reviewed before being finalized.