Model · xAI

Grok Code Fast 1

Code-specialized Grok family tuned for software engineering tasks.

Pricing

Model Overview

Tracked token-pricing fields for this model family. Empty pricing fields stay hidden until the source publishes them.

Surface

Input and output modalities, enabled feature flags, strengths, and tradeoffs.

Model capabilities
Attribute	Values
Modalities	text to text
Capabilities	reasoningbatchSupportpromptCachingfunctionCallingstructuredOutputs
Strengths	Low-cost coding tier, Long repository context
Tradeoffs	Text-only

References

Canonical launch, documentation, pricing, and release-note URLs.

Official model links
Reference	URL
Intro	https://data.x.ai/2025-08-26-grok-code-fast-1-model-card.pdf
Docs	https://docs.x.ai/developers/models
Pricing	https://docs.x.ai/developers/models
Release note	https://docs.x.ai/docs/release-notes

Coverage

Reported benchmark families, versions, scores, sources, and notes.

Benchmark coverage
Benchmark	Version	Score	Date	Source	Notes

Lifecycle

Lifecycle transitions and release timeline for this model family.

Release history
Release	Alias	Lifecycle	Release Date	Deprecation	Shutdown	Summary
Grok Code Fast 1	grok-code-fast-1	Active	Aug 26, 2025	—	—	Current published model family snapshot.

Surfaces

Provider-specific hosting, context, pricing notes, feature differences, and provider-status context.

Host coverage
Host	Type	Context	Pricing Note	Differences
xAI API	first-party	256.0K	Reference access to code-specialized Grok family.	Coding-tuned behavior

Migration

Documented migration summary, successor families, and known breaking changes.

Migration guidance
Topic	Details
Summary	xAI coding-focused option for code generation and repository tasks.
Replacement models	grok-4-fast

Timeline

Cataloged model-family updates and source references.

Change events
Date	Type	Title	Description	Source
Aug 26, 2025	family_added	Grok Code Fast 1 published	Initial public model family launch.	Grok Code Fast 1 release notes

From xAI