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Grok Build 0.1

Grok Build 0.1 is xAI's coding model purpose-built for agentic software engineering workflows. It supports tool calling, structured outputs, text and image input, and a context window of 256K tokens, with always-on reasoning for multi-step development tasks.

ReasoningImplicit CachingVision (Image)Tool UseWeb Search
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'xai/grok-build-0.1',
  prompt: 'Why is the sky blue?'
})
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Frequently Asked Questions

  • What is Grok Build 0.1 optimized for?

    Grok Build 0.1 is purpose-built for agentic coding workflows. It's trained to act as an autonomous engineering agent that refactors code, invokes tools, produces structured outputs, and iterates through multi-step development tasks.

  • Does Grok Build 0.1 support a non-reasoning mode?

    No. Reasoning is always active on Grok Build 0.1 and reasoning effort is not configurable. Every response includes structured analysis before the final output.

  • What inputs does Grok Build 0.1 accept?

    Grok Build 0.1 accepts text and image input. You can include source code, diagrams, UI mockups, or error screenshots in the same request. Output is text.

  • What is the context window for Grok Build 0.1?

    The context window is 256K tokens, which fits substantial codebases or long agent histories in a single session.

  • How does Grok Build 0.1 compare to Grok Code Fast 1?

    Grok Build 0.1 is the next-generation coding model from xAI, with always-on reasoning, tool calling, and structured outputs designed for autonomous agents. Grok Code Fast 1 targets fast code generation and completion in interactive workflows.

  • What does Grok Build 0.1 cost through Vercel AI Gateway?

    Current pricing is shown on this page. AI Gateway routes across providers, and rates may vary by provider.

  • How do I authenticate with Grok Build 0.1 through Vercel AI Gateway?

    Use your Vercel AI Gateway API key with xai/grok-build-0.1 as the model identifier. AI Gateway handles provider routing automatically through the AI SDK plus Chat Completions, Responses, and Messages APIs.

  • Does Vercel AI Gateway support Zero Data Retention for Grok Build 0.1?

    Zero Data Retention is not currently available for this model. Zero Data Retention is offered on a per-provider basis. See https://vercel.com/docs/ai-gateway/capabilities/zdr for details.