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.

Modèle de base Tous les modèles de cette base Tous les modèles du fournisseur vers le fournisseur

Entrée, $/1M $0.25

Sortie, $/1M $1.50

Lecture cache $0.025

Écriture cache —

Contexte 1 048 576

Sortie max. 65 536

Accepte audio, fichiers, images, texte, vidéo

Dernière vérification 04.11.2026 12:00:14 UTC

Source page du fournisseur

Alertes de prix

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API

API compatible OpenAI : les SDK officiels d'OpenAI fonctionnent avec cette URL de base. Remplacez YOUR_API_KEY par votre clé du fournisseur.

URL de base de l'API	`https://go.fastrouter.ai/api/v1`
Point de terminaison	`https://go.fastrouter.ai/api/v1/chat/completions`
ID du modèle	`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());

Requête (JSON)

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

Réponse (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
  }
}

L'adresse provient de la liste de modèles du fournisseur ; vérifiez-la dans sa documentation.

Documentation API du fournisseur

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

Détails techniques

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