xAI Launches Grok Build: Terminal-Native Coding Agent With 16-Agent Architecture and 2M Token Context — $300/Month Beta

Bloomberg / Engadget·high signal

xAI entered the AI coding agent race on May 15 with Grok Build, a terminal-native CLI that spawns up to 8 concurrent AI agents using the Grok 4.3 beta model with a 16-agent Heavy architecture and 2 million token context window. Features include plan mode (review/edit/approve before execution), file editing, and shell command execution. Currently limited to SuperGrok Heavy subscribers at $300/month. Elon Musk acknowledged xAI's lag behind Anthropic and OpenAI in coding capabilities.