AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Composer 2.5 vs Grok‑2

Cursor
Composer 2.5
xAI
Grok‑2
Overview
CompanyCursorxAI
Release dateMay 18 2026Aug 14 2024
AccessProprietaryProprietary
Benchmarks
Multilingual coding
SWE-Bench Multilingual
79.8%
Agentic coding
CursorBench v3.1
63.2%
Next.js coding
Next.js Evals
92%
Agentic terminal coding
Terminal-Bench 2.0
69.3%
Timeline
Release gapGrok‑2 shipped 642 days before Composer 2.5

Which is better: Composer 2.5 or Grok‑2?

Composer 2.5 and Grok‑2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑2 shipped 642 days before Composer 2.5, 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 2.5 and Grok‑2 don't publish scores on any of the same benchmarks.

Frequently asked questions

Composer 2.5 was released by Cursor on May 18 2026.

Grok‑2 was released by xAI on Aug 14 2024.

Other comparisons