LLM Reference
Microsoft Foundry

Using Grok Code Fast 1 on Microsoft Foundry

Implementation guide · Grok 4 · xAI

Serverless

Microsoft Foundry exposes Grok Code Fast 1 through model ID grok-code-fast-1. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-07-09. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at Microsoft Foundry and generate an API key.
  2. 2
    Use the Microsoft Foundry SDK or REST API to call grok-code-fast-1 — see the documentation for request format.
API PortalDocumentationPricing

Code Examples

See Microsoft Foundry documentation for integration details.

Pricing on Microsoft Foundry

Capabilities

JSON / Tool useStructured Outputs

About Grok Code Fast 1

xAI's Grok Code Fast 1 is a code-specialized Mixture-of-Experts model released August 27, 2025. It was retired on May 15, 2026; xAI lists grok-build-0.1 as its direct replacement for current coding-agent work.

Full model details →

Model Specs

Released2025-08-27
Parameters314B
Context262k
ArchitectureMixture of Experts

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Also available on(2)

OpenRouter$0.20/1MxAI Console$1.25/1M
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Provider

Microsoft Foundry
Microsoft Foundry

Microsoft

Redmond, Washington, United States