Gemini 3.1 Pro Preview vs GPT-5 Nano
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 Pro Preview vs GPT-5 Nano: side by side
| Spec | Gemini 3.1 Pro Preview | GPT-5 Nano | Winner |
|---|---|---|---|
| Intelligence | 57.2 | 26.8 | Gemini 3.1 Pro Preview |
| Output speed | 133 t/s | 170 t/s | GPT-5 Nano |
| Output price | $12.00/1M | $0.40/1M | GPT-5 Nano |
| Context | 1049K | 400K | Gemini 3.1 Pro Preview |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | OpenAI | Tie |
Gemini 3.1 Pro Preview
Pros
- +Handles up to 1M token contexts
- +Native support for audio, image, video, and text
- +Strong integration of multiple modalities
- +Effective for large-scale document analysis
Cons
- –Preview model may show inconsistent outputs
- –High resource use with maximum context
- –Requires verification on complex tasks
GPT-5 Nano
Pros
- +Handles very large contexts efficiently
- +Supports text, image, and file inputs
- +Lightweight design for faster responses
- +Practical for extended document tasks
Cons
- –Lower capability depth than full-scale models
- –May struggle with highly complex reasoning
- –Trade-off in advanced task performance
Frequently asked questions
It depends on your needs. Gemini 3.1 Pro Preview and GPT-5 Nano are both multimodal models; the comparison table above shows where each one leads on the metrics that matter. See the verdict for a recommendation.