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

Composer 2.5 vs Grok‑1

Cursor
Composer 2.5
xAI
Grok‑1
Overview
CompanyCursorxAI
Release dateMay 18 2026Nov 3 2023
AccessProprietaryOpen Weight
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‑1 shipped 927 days before Composer 2.5

Which is better: Composer 2.5 or Grok‑1?

Composer 2.5 and Grok‑1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑1 shipped 927 days before Composer 2.5, so benchmark comparisons should account for the intervening progress.

Composer 2.5 is proprietary, while Grok‑1 is open weight.

Direct benchmark comparisons are unavailable — Composer 2.5 and Grok‑1 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‑1 was released by xAI on Nov 3 2023.

Composer 2.5 is a proprietary model released by Cursor. Grok‑1 is an open weight model released by xAI.

Other comparisons