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Composer 2 vs Grok Code Fast 1

Cursor Composer 2 vs xAI Grok Code Fast 1 — side-by-side specs.

Cursor
Composer 2
xAI
Grok Code Fast 1
Overview
CompanyCursorxAI
Release dateMar 20 2026Aug 28 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Multilingual coding
SWE-Bench Multilingual
73.7%
Agentic coding
CursorBench v3.1
52.2%
Agentic terminal coding
Terminal-Bench 2.0
61.7%
Timeline
Release gapGrok Code Fast 1 shipped 204 days before Composer 2

Which is better: Composer 2 or Grok Code Fast 1?

Composer 2 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 204 days before Composer 2, 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 2 and Grok Code Fast 1 don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Composer 2 released?
Composer 2 was released by Cursor on Mar 20 2026.
When was Grok Code Fast 1 released?
Grok Code Fast 1 was released by xAI on Aug 28 2025.

Other comparisons