Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Google's fastest, most cost-efficient Gemini image model, built for high-velocity developer pipelines and rapid-fire visual exploration. It delivers text-to-image generation...
Model details →Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) vs Auto Router (Beta)
Auto Router (Beta) wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
Auto Router (Beta) is a task-aware router from OpenRouter. It classifies each request, then routes it the [most popular model](/rankings#task-spend) for that task based on aggregate spend, filtered by your...
Model details →Side-by-side comparison
| Capability | Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Auto Router (Beta) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 66K | 2M | 🏆 Auto Router (Beta) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.25 | $-1000000.00 | 🏆 Auto Router (Beta) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $1.50 | $-1000000.00 | 🏆 Auto Router (Beta) |
| Tool / function calling First-class support for emitting structured tool calls. | — | Yes | 🏆 Auto Router (Beta) |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) better than Auto Router (Beta)?
Auto Router (Beta) wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) and Auto Router (Beta)?
Input: $0.25 vs $-1000000.00 per 1M tokens. Output: $1.50 vs $-1000000.00 per 1M tokens.
What context windows do Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) and Auto Router (Beta) support?
Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) supports up to 66K tokens. Auto Router (Beta) supports up to 2M tokens.
Do both Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) and Auto Router (Beta) support tool calling?
Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): not advertised. Auto Router (Beta): yes.
Compare Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) with other models
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