Gemini 3.1 Flash Lite vs Grok 4.20
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 vs Grok 4.20: side by side
| Spec | Gemini 3.1 Flash Lite | Grok 4.20 | Winner |
|---|---|---|---|
| Intelligence | 33.5 | 49.3 | Grok 4.20 |
| Output speed | 310 t/s | 168 t/s | Gemini 3.1 Flash Lite |
| Output price | $1.50/1M | $2.50/1M | Gemini 3.1 Flash Lite |
| Context | 1049K | 2000K | Grok 4.20 |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | xAI | Tie |
Gemini 3.1 Flash Lite
Pros
- +High speed and low latency
- +Handles very large context windows
- +Broad modality support in a lightweight package
- +Resource-efficient inference
Cons
- –Reduced depth on highly complex reasoning tasks
- –Lite design trades peak capability for speed
- –May require more guidance on nuanced or creative outputs
Grok 4.20
Pros
- +Handles extremely large contexts up to 2M tokens
- +Native support for text, image, and file inputs
- +Multimodal integration in a single model
Cons
- –No audio or video modality support
- –Very large context can increase latency
- –Performance depends on input quality and structure
Frequently asked questions
It depends on your needs. Gemini 3.1 Flash Lite and Grok 4.20 are both multimodal models; the comparison table above shows where each one leads on the metrics that matter. See the verdict for a recommendation.