Google: Gemini 3.1 Flash-Lite · fastrouter

Gemini 3.1 Flash-Lite is Google's most cost-efficient Gemini 3-series model, a low-latency multimodal model optimized for high-volume, cost-sensitive workloads such as classification, translation, data extraction, model routing, and simple agentic tasks. It supports a 1,048,576-token context window across text, images, video, audio, and PDFs, with improved instruction following and audio input quality over Gemini 2.5 Flash-Lite, and four configurable thinking levels (minimal, low, medium, high). It supports function calling, structured outputs, code execution, file search, URL context, Google Search and Maps grounding, and context caching. Knowledge cutoff is January 2025.

Modelo base Todos os modelos desta base Todos os modelos do provedor ao provedor

Entrada, $/1M $0.25

Saída, $/1M $1.50

Leitura de cache $0.025

Gravação de cache —

Contexto 1 048 576

Saída máx. 65 536

Aceita áudio, arquivos, imagens, texto, vídeo

Última verificação 04.11.2026 12:00:14 UTC

Fonte página do provedor

Alertas de preço

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API

API compatível com OpenAI: os SDKs oficiais da OpenAI funcionam com esta URL base. Substitua YOUR_API_KEY pela sua chave do provedor.

URL base da API	`https://go.fastrouter.ai/api/v1`
Endpoint	`https://go.fastrouter.ai/api/v1/chat/completions`
ID do modelo	`google/gemini-3.1-flash-lite`

curl

curl https://go.fastrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "google/gemini-3.1-flash-lite", "messages": [{"role": "user", "content": "Hello!"}], "max_tokens": 256}'

Python

import requests

r = requests.post(
    "https://go.fastrouter.ai/api/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "google/gemini-3.1-flash-lite",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ],
      "max_tokens": 256
    },
)
print(r.json())

JavaScript

const r = await fetch("https://go.fastrouter.ai/api/v1/chat/completions", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "google/gemini-3.1-flash-lite",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());

Requisição (JSON)

{
  "model": "google/gemini-3.1-flash-lite",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}

Resposta (JSON)

{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "google/gemini-3.1-flash-lite",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hi! How can I help?"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 9,
    "completion_tokens": 12,
    "total_tokens": 21
  }
}

O endereço vem da lista de modelos do provedor; confira na documentação dele.

Documentação da API do provedor

Source: AI Rate Card, https://airatecard.com/pt/c/offer%3Afastrouter%7Cgoogle/gemini-3.1-flash-lite, prices checked 2026-11-04; seller's page: https://fastrouter.ai

Dados técnicos

ID: offer:fastrouter|google/gemini-3.1-flash-lite