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Composer vs Grok Code Fast 1

Cursor Composer vs xAI Grok Code Fast 1 — side-by-side specs.

Cursor
Composer
xAI
Grok Code Fast 1
Overview
CompanyCursorxAI
Release dateOct 29 2025Aug 28 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapGrok Code Fast 1 shipped 62 days before Composer

Which is better: Composer or Grok Code Fast 1?

Composer and Grok Code Fast 1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok Code Fast 1 shipped 62 days before Composer, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — Composer and Grok Code Fast 1 don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Composer released?
Composer was released by Cursor on Oct 29 2025.
When was Grok Code Fast 1 released?
Grok Code Fast 1 was released by xAI on Aug 28 2025.

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