Composer 2.5vsGemini 3.5 Flash-Lite
Composer 2.5 | Gemini 3.5 Flash-Lite | |
|---|---|---|
| Benchmarks | ||
Agentic coding SWE-Bench ProCan the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | 54% | 54.2%Best |
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% | — |
Agentic coding DeepSWE 1.0Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. Higher is better. | 18% | — |
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 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | 73%Best | 54% |
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% | — |
Browser agent BU BenchCan the AI drive a real web browser to finish tasks — clicking, filling forms, and navigating sites the way a person would? Run by Browser Use on their BU Bench task set. Higher is better. | — | 49% |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | — | 74% |
Knowledge work GDPval-AA v2economically valuable knowledge work (v2, re-based Elo) | — | 1140 |
| Timeline | ||
| Release gap | Composer 2.5 shipped 64 days before Gemini 3.5 Flash-Lite | |
| Overview | ||
| Company | Cursor | |
| Release date | May 18 2026 | Jul 21 2026 |
| Access | Proprietary | Proprietary |
Which is better: Composer 2.5 or Gemini 3.5 Flash-Lite?
Composer 2.5 and Gemini 3.5 Flash-Lite are evenly matched across the 2 benchmarks they both report (SWE-Bench Pro, Terminal-Bench 2.1). Composer 2.5 shipped 64 days before Gemini 3.5 Flash-Lite, 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.
On SWE-Bench Pro, Gemini 3.5 Flash-Lite leads at 54.2% vs Composer 2.5 at 54%. On Terminal-Bench 2.1, Composer 2.5 leads at 73% vs Gemini 3.5 Flash-Lite at 54%.
Frequently asked questions
Composer 2.5 was released by Cursor on May 18 2026.
Gemini 3.5 Flash-Lite was released by Google on Jul 21 2026.
Gemini 3.5 Flash-Lite leads on SWE-Bench Pro — Composer 2.5 54% vs Gemini 3.5 Flash-Lite 54.2%.
Other comparisons
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