Composer 2.5 vs Grok Code Fast 1
Cursor Composer 2.5 | xAI Grok Code Fast 1 | |
|---|---|---|
| Overview | ||
| Company | Cursor | xAI |
| Release date | May 18 2026 | Aug 28 2025 |
| Access | Proprietary | Proprietary |
| Benchmarks | ||
Multilingual coding SWE-Bench MultilingualLike SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better. | 79.8% | — |
Agentic coding CursorBench v3.1Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better. | 63.2% | — |
Next.js coding Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | 92% | — |
Agentic terminal coding Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better. | 69.3% | — |
| Timeline | ||
| Release gap | Grok Code Fast 1 shipped 263 days before Composer 2.5 | |
Which is better: Composer 2.5 or Grok Code Fast 1?
Composer 2.5 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 263 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 Code Fast 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 Code Fast 1 was released by xAI on Aug 28 2025.
Other comparisons
Composer 2.5 vs Claude Sonnet 5Grok Code Fast 1 vs Claude Sonnet 5Composer 2.5 vs GPT-5.6 SolGrok Code Fast 1 vs GPT-5.6 SolComposer 2.5 vs Gemini OmniGrok Code Fast 1 vs Gemini OmniComposer 2.5 vs Muse SparkGrok Code Fast 1 vs Muse SparkComposer 2.5 vs DeepSeek-V4-ProGrok Code Fast 1 vs DeepSeek-V4-ProComposer 2.5 vs Mistral Medium 3.5Grok Code Fast 1 vs Mistral Medium 3.5