Grok Build 0.1 is positioned by xAI as a specialized coding model trained for agentic software engineering rather than a general-purpose conversational assistant. The model is tuned for multi-step development workflows that involve planning, writing, refactoring, and iterating on code, with particular emphasis on web development, debugging, and MCP support. It underpins xAI's Grok Build CLI and is exposed through the xAI API as the same model that powers that command-line experience, letting teams integrate it into custom orchestrators, CI/CD pipelines, and third-party coding harnesses such as Cursor, Hermes Agent, OpenClaw, Kilo Code, and OpenCode.

In early access benchmarks reviewed by Stork AI, Grok Build 0.1 recorded a composite Intelligence Index score of 39.80, placing it 27th among 155 evaluated models, with reviewers describing it as offering agentic software development at a low cost while flagging notable hallucinations during the public beta. xAI highlights built-in reasoning that remains always on, alongside function calling and structured outputs, which together enable an agent to plan, reason, and act across long-running tasks. Its very large that quick-info value window makes it well suited to long-horizon coding and automation, and xAI positions it as a fast, economical option for broader agentic and tool-calling workloads beyond pure code generation.