Gemini 3.5 Flash-LitevsGPT-5.4 mini
Gemini 3.5 Flash-Lite | GPT-5.4 mini | |
|---|---|---|
| Specifications | ||
Context window | — | 400k |
| 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. | — | 32% |
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% | — |
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% | — |
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%Best | 36% |
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 (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. | — | 1398 |
| Timeline | ||
| Release gap | GPT-5.4 mini shipped 126 days before Gemini 3.5 Flash-Lite | |
| Overview | ||
| Company | OpenAI | |
| Release date | Jul 21 2026 | Mar 17 2026 |
| Access | Proprietary | Proprietary |
Which is better: Gemini 3.5 Flash-Lite or GPT-5.4 mini?
Gemini 3.5 Flash-Lite leads GPT-5.4 mini on 1 of the 1 benchmark they both report (BU Bench). GPT-5.4 mini shipped 126 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 BU Bench, Gemini 3.5 Flash-Lite leads at 49% vs GPT-5.4 mini at 36%.
Frequently asked questions
Gemini 3.5 Flash-Lite was released by Google on Jul 21 2026.
GPT-5.4 mini was released by OpenAI on Mar 17 2026.
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