Long context

gemini-3.1-flash-lite API pricing

Google's Gemini series — very long context windows and strong multimodal input.

Model IDgoogle/gemini-3.1-flash-lite

Get API Key Run your first request

Call summary

Input

$0.25/ 1M tokens

Cache write $0.25

Output

$1.50/ 1M tokens

Cache read $0.25

Context Window

1.05M

API Endpoints

Available Configurations

gemini-3.1-flash-lite API endpoints

One API key — this model is served on the endpoint below.

POST/v1/chat/completionsOpenAI-compatible · Works for every model

Docs

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More Gemini models on Router One

10 other Gemini models on the same gateway and API key — each page lists endpoints, posted price, and context window.

Call gemini-3.1-flash-lite from your code

Your API key works on this endpoint.

Endpoint

/v1/chat/completions

Model ID

google/gemini-3.1-flash-lite

Routing mode

auto

Request example

bash

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

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gemini-3.1-flash-lite at a glance

gemini-3.1-flash-lite is a Gemini-series text model on Router One. gemini-3.1-flash-lite is the general-availability id; the preview id gemini-3.1-flash-lite-preview is listed separately at its own rate. Posted rate: $0.25 in / $1.50 out per 1M tokens. Context window: 1.05M tokens. Accepts text, image; returns text. Endpoint: POST /v1/chat/completions (OpenAI-compatible).

gemini-3.1-flash-lite FAQ

How much does gemini-3.1-flash-lite cost on Router One?

gemini-3.1-flash-lite is billed per token on Router One: $0.25 in / $1.50 out per 1M tokens, pay as you go.

Which endpoints serve gemini-3.1-flash-lite?

gemini-3.1-flash-lite is served on POST /v1/chat/completions (OpenAI-compatible). Any Router One API key works there.

What is gemini-3.1-flash-lite's context window?

gemini-3.1-flash-lite accepts up to 1.05M tokens of context per request on Router One.

Start using gemini-3.1-flash-lite

Create an API key and call gemini-3.1-flash-lite at $0.25 in / $1.50 out per 1M tokens on Router One — pay as you go, with per-request cost and latency visibility.

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