Gemini 3.1 Flash Lite Preview vs GPT-5.1
A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
Gemini 3.1 Flash Lite Preview vs GPT-5.1: side by side
| Spec | Gemini 3.1 Flash Lite Preview | GPT-5.1 | Winner |
|---|---|---|---|
| Intelligence | 33.5 | 27.4 | Gemini 3.1 Flash Lite Preview |
| Output speed | 310 t/s | 116 t/s | Gemini 3.1 Flash Lite Preview |
| Output price | $1.50/1M | $10.00/1M | Gemini 3.1 Flash Lite Preview |
| Context | 1049K | 400K | Gemini 3.1 Flash Lite Preview |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | OpenAI | Tie |
Gemini 3.1 Flash Lite Preview
Pros
- +Broad native support for multiple modalities
- +Very large context window for document and media tasks
- +Lightweight design optimized for speed
- +Unified handling of video, audio and files
Cons
- –Preview model may show inconsistent behavior
- –Lite variant trades depth for efficiency
- –Experimental features can be less reliable than stable releases
GPT-5.1
Pros
- +Very large context window
- +Native support for images, text, and files
- +Strong multimodal integration
Cons
- –No audio or video modalities
- –Performance details unverified beyond specs
- –Potential latency with maximum context
Frequently asked questions
It depends on your needs. Gemini 3.1 Flash Lite Preview and GPT-5.1 are both multimodal models; the comparison table above shows where each one leads on the metrics that matter. See the verdict for a recommendation.