Grok Build: xAI's Local-First Coding Agent with 8 Parallel Agents and Arena Mode — Complete Guide (April 2026)
xAI's Grok Build runs up to eight parallel AI agents simultaneously on a single prompt, evaluates outputs algorithmically via Arena Mode, and keeps all source code on-device. This guide covers the architecture, grok-code-fast-1 benchmarks, how it compares to Claude Code and Cursor, and how to get early access.
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