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

Get API Key Run your first request

Call summary

Input

$0.1125/ 1M tokens

Cache write $0.1125

Cache read $0.0115

Output

$0.675/ 1M tokens

Context Window

1.05M

API Endpoints

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

Chat Completions reference

Call Gemini 3 Flash from your code

Your API key works on this endpoint.

Endpoint

/v1/chat/completions

Model ID

google/gemini-3-flash

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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Production reliability

Privacy-safe aggregates from real Router One model calls, so you can assess stability and response latency before integrating.

Successful response share

99.81%

Success 2xx

99.81%

Rate limit 429

0.00%

Server 5xx

0.19%

TPS

418.81

tokens/s

Avg. time to first token

6.6 s

Avg. latency

7.13 s

Includes production requests ending in 2xx, 429, or 5xx. Average latency uses successful requests; time to first token and TPS require complete observations from successful streams. Public thresholds are 100 requests and 5 independent principals.

Updated Oct 12, 2026, 11:19 AM UTC

More Gemini models on Router One

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

Gemini 3 Flash at a glance

Gemini 3 Flash (model ID google/gemini-3-flash) is a Gemini-series text model on Router One. google/gemini-3-flash is the general-availability id; the preview id google/gemini-3-flash-preview is listed separately at its own rate. Posted rate: $0.1125 in / $0.675 out per 1M tokens. No Router One subscription plan includes Gemini 3 Flash today; every call bills the wallet at its posted rate. 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.

Is Gemini 3 Flash included in Router One subscriptions?

No Router One subscription plan includes Gemini 3 Flash today; every call bills the wallet at its posted rate.

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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