The Quiet Arrival of Grok Build 0.1 in a Wild Week for the xAI Empire

xAI quietly released Grok Build 0.1, a new coding-focused AI model designed for agentic, long-horizon software engineering tasks. It features a 256K context window, no text output limits, and is priced at $1/million input tokens and $2/million output tokens. Unlike Grok Code Fast (which handled quick autocomplete), Build 0.1 is positioned as an 'architect' model that can autonomously refactor large codebases, use tools, and iterate in continuous loops. Early testing suggests it's fast, cost-effective, and capable of one-shotting complex tasks like building landing pages in under a minute for under ten cents. The model is now available in early access on the Kilo platform.