xAI Grok Build 0.1
xAI's coding-focused model — public beta on the xAI API, built for the Grok Build agent.
About
Grok Build 0.1 entered public beta on May 29, 2026 as xAI's coding-focused model on the xAI API, powering the Grok Build terminal coding agent (interactive TUI plus headless mode, with Agent Client Protocol support for embedding in other apps). The Grok Build CLI itself went open source on July 15, 2026. Context worth knowing: on May 15, 2026 xAI retired older API models including Grok Code Fast 1, with legacy model IDs redirecting to newer models — so Grok Build 0.1 is the current coding-model path on xAI's API, not a side experiment. Public benchmark figures for this specific model did not appear in the sources read; xAI's coding claims cluster around the Grok 4.5/4.6/4.7 line instead.
Specs
Context window
Pricing
Free quota
API access
Weights
Released
Benchmarks
No public benchmark figures in sources read
Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.
Use cases
Trust score — 6/10
Scored 6/10 (metrics tier, metrics-v1). Evidence: May 29, 2026 public beta as coding-focused model on xAI API — per SpaceXAI timeline; Grok Build CLI open-sourced Jul 15, 2026 per Winzheng; No public benchmark figures for this specific model in sources read; Thinnest sourcing in the batch — two sources, both secondary.