Grok Build 0.1 (xAI)

Yage.ai reports xAI released the Grok Build CLI on May 25, 2026 in early beta (limited to SuperGrok and X Premium+ subscribers) and opened grok-build-0.1 to public beta via the API on May 28, 2026, positioning it as a "fastest coding model" specifically trained for agentic tasks. Concrete model-level details include AP The article contrasts grok-build-0.1's parallel-breadth approach (eight sub-agents, Arena Mode scoring, three-stage plan/search/build) against Claude Code's single-deep-agent design with its 1M-token context window, citing Morph and BuildFastWithAI on the context trade-off. Independent analyses quoted suggest paralleli

TechJackSolutions reports that xAI launched Composer 2.5 inside the Grok Build CLI on June 1, 2026, three days after grok-build-0.1 entered public API beta (dated May 29, 2026 by this source). It repeats vendor-reported model specs for grok-build-0.1: $1/M input and $2/M output tokens, 100+ tokens/second throughput, wi The piece emphasizes release cadence — a three-day gap from API beta to CLI iteration — as the story, framing xAI as now iterating at a pace that makes quarterly cycles look slow. It also references a SpaceXAI entity name confirmed via xAI's own May 6 blog post, though it notes the formal corporate structure is sourced

Verdent's guide to grok-code-fast-1 states that xAI's current model documentation lists grok-code-fast-1 as an alias for grok-build-0.1, and that xAI's May 2026 release notes introduced grok-build-0.1 in early access. The guide also dates the original grok-code-fast-1 launch to August 28, 2025 as a coding-focused reaso Verdent recommends developers verify the active model ID, current pricing, and provider route before comparing results, and notes its alias and early-access details were rechecked against linked xAI pages on July 17, 2026. The page itself is a Verdent product guide with affiliate framing rather than an xAI primary sour

AgentRiot reports that xAI released Grok Build, a terminal-native coding agent, on May 14, 2026, with the underlying grok-build-0.1 model entering public API beta on May 20, 2026. Per cited xAI documentation, grok-build-0.1 is a coding model "specifically trained for agentic coding workflows," accepting text and image A third-party "309B-parameter MoE with 15B active and hybrid attention" claim, attributed to TypingMind/OpenRouter, is labeled unconfirmed by the article. AgentRiot also notes that the model replaces grok-code-fast-1 and sits outside the Grok 4 lineage, framing grok-build-0.1 as xAI's first serious entry against Claude