Gemini 3.5 Flash-LitevsComposer 2.5
Gemini 3.5 Flash-Lite | Composer 2.5 | |
|---|---|---|
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 65% | — |
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. | 54.2%Best | 54% |
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 v3.2Cursor's own test of harder, real-world coding tasks inside a code editor, on the refreshed v3.2 task set. Scores aren't comparable with v3.1. Higher is better. | — | 56.1% |
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. | 54% | 73%Best |
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 | — |
Community preference Arena Elo (Text)Real people chat with two anonymous AIs side by side and vote for the answer they prefer. Votes become a chess-style Elo rating on arena.ai — it measures which AI people actually like, not test scores. Higher is better. | 1459 | — |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | 1453 | — |
| Overview | ||
| Company | SpaceXAI | |
| Release date | Jul 21 2026 | May 18 2026 |
| Access | Proprietary | Proprietary |
Which is better: Gemini 3.5 Flash-Lite or Composer 2.5?
Gemini 3.5 Flash-Lite and Composer 2.5 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
Gemini 3.5 Flash-Lite was released by Google on Jul 21 2026.
Composer 2.5 was released by SpaceXAI on May 18 2026.
Gemini 3.5 Flash-Lite leads on SWE-Bench Pro — Gemini 3.5 Flash-Lite 54.2% vs Composer 2.5 54%.
Other comparisons
Gemini 3.5 Flash-LitevsClaude Opus 5Composer 2.5vsClaude Opus 5Gemini 3.5 Flash-LitevsGPT-5.6-CyberComposer 2.5vsGPT-5.6-CyberGemini 3.5 Flash-LitevsMuse GlimmerComposer 2.5vsMuse GlimmerGemini 3.5 Flash-LitevsDeepSeek-V4-Pro-0813Composer 2.5vsDeepSeek-V4-Pro-0813Gemini 3.5 Flash-LitevsMistral Medium 3.5Composer 2.5vsMistral Medium 3.5Gemini 3.5 Flash-LitevsKimi K3Composer 2.5vsKimi K3