Gemini 3.1 Flash-LitevsGemini 3.5 Flash-Lite
Gemini 3.1 Flash-Lite | Gemini 3.5 Flash-Lite | |
|---|---|---|
| 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. | 11% | — |
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% |
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. | 1253 | — |
| Timeline | ||
| Release gap | Gemini 3.1 Flash-Lite shipped 140 days before Gemini 3.5 Flash-Lite | |
| Overview | ||
| Company | ||
| Release date | Mar 3 2026 | Jul 21 2026 |
| Access | Proprietary | Proprietary |
Which is better: Gemini 3.1 Flash-Lite or Gemini 3.5 Flash-Lite?
Gemini 3.1 Flash-Lite and Gemini 3.5 Flash-Lite don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 3.1 Flash-Lite shipped 140 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.
Direct benchmark comparisons are unavailable — Gemini 3.1 Flash-Lite and Gemini 3.5 Flash-Lite don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemini 3.1 Flash-Lite was released by Google on Mar 3 2026.
Gemini 3.5 Flash-Lite was released by Google on Jul 21 2026.
Other comparisons
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