# Google Gemini 3.1 Flash Lite Preview API

> Gemini 3.1 Flash Lite Preview is Google's high-efficiency model optimized for high-volume use cases. It outperforms Gemini 2.5 Flash Lite on overall quality and approaches Gemini 2.5 Flash performance across key capabilities. Improvements span audio input/ASR, RAG snippet ranking, translation, data extraction, and code completion. Supports full thinking levels (minimal, low, medium, high) for fine-grained cost/performance trade-offs. Priced at half the cost of Gemini 3 Flash.

Source: https://www.sandbase.ai/model/google/gemini-3.1-flash-lite-preview
API reference: https://www.sandbase.ai/model/google/gemini-3.1-flash-lite-preview/docs

## Facts

- Provider: Google
- Type: Language model
- Model ID: `google/gemini-3.1-flash-lite-preview`
- Price: $0.25 per 1M input tokens, $1.50 per 1M output tokens
- Context window: 1M tokens, up to 65.5K output tokens
- Capabilities: chat, vision, audio input, reasoning, structured output, function calling
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

- Chat Completions API: `POST https://api.sandbase.ai/v1/chat/completions`

```bash
curl -X POST https://api.sandbase.ai/v1/chat/completions \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "google/gemini-3.1-flash-lite-preview",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}'
```

## FAQ

### How do I call Google Gemini 3.1 Flash Lite Preview through SandBase?

Create a SandBase API key, then send requests with the model ID "google/gemini-3.1-flash-lite-preview" to Chat Completions API (/v1/chat/completions) at https://api.sandbase.ai. The request examples on this page show the exact payload.

### How much does Google Gemini 3.1 Flash Lite Preview cost?

$0.25 per 1M input tokens and $1.50 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

### What is the context window of Google Gemini 3.1 Flash Lite Preview?

1M tokens of context, with up to 65.5K output tokens per response.

### How does Google Gemini 3.1 Flash Lite Preview score on benchmarks?

Google Gemini 3.1 Flash Lite Preview scores 15.6 on the Artificial Analysis Intelligence Index (v4.3), ranking #68 of 83 models on SandBase; Coding Index 34.7, Agentic Index 1.6. Source: Artificial Analysis, measured as Gemini 3.1 Flash-Lite.

### Which features does Google Gemini 3.1 Flash Lite Preview support?

Google Gemini 3.1 Flash Lite Preview supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.

### Do I need a separate Google account?

No. One SandBase API key and balance gives you access to Google Gemini 3.1 Flash Lite Preview and the other models in the catalog; you do not need to sign up with Google separately.