Long context

gemini-3-flash API pricing

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

Model IDgoogle/gemini-3-flash

ChatStreamingTool callingVision

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Call summary

Input

$0.11/ 1M tokens

Cache write $0.11

Output

$0.68/ 1M tokens

Cache read $0.01

Context Window

1.05M

API Endpoints

Available Configurations

gemini-3-flash API endpoints

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

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

Docs

Production reliability

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More Gemini models on Router One

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

gemini-3.1-flash-image-preview$0.50 per image gemini-3.1-pro-preview$6.00 in / $18.00 out per 1M1.05M context gemini-3.5-flash$0.45 in / $2.70 out per 1M1.05M context gemini-3.6-flash$0.45 in / $2.70 out per 1M1.05M context gemini-3.7-flash$0.225 in / $1.125 out per 1M1.05M context gemini-3-flash-preview$1.20 in / $8.00 out per 1M1.05M context gemini-3-pro-image-preview$0.50 per image gemini-3-pro-preview-11-2025$0.882 in / $7.00 out per 1M1.05M context

Call gemini-3-flash from your code

Your API key works on this endpoint.

Endpoint

/v1/chat/completions

Model ID

google/gemini-3-flash

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-flash",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

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gemini-3-flash at a glance

gemini-3-flash is a Gemini-series text model on Router One. Posted rate: $0.1125 in / $0.675 out per 1M tokens. Context window: 1.05M tokens. Accepts text, image; returns text. Endpoint: POST /v1/chat/completions (OpenAI-compatible).

gemini-3-flash FAQ

How much does gemini-3-flash cost on Router One?

gemini-3-flash is billed per token on Router One: $0.1125 in / $0.675 out per 1M tokens, pay as you go.

Which endpoints serve gemini-3-flash?

gemini-3-flash is served on POST /v1/chat/completions (OpenAI-compatible). Any Router One API key works there.

What is gemini-3-flash's context window?

gemini-3-flash accepts up to 1.05M tokens of context per request on Router One.

Start using gemini-3-flash

Create an API key and call gemini-3-flash at $0.1125 in / $0.675 out per 1M tokens on Router One — pay as you go, with per-request cost and latency visibility.

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