OpenRouter

OpenRouter: Gemini 3 Pro (Preview, OR)

preview

Gemini 3 Pro (Preview, OR) is available through Everstack's OpenAI-compatible gateway with routing, fallback, retries, and observability.

google-gemini-3-pro-previewgemini-3
ProviderQuick start
Context
1.1M
tokens
Max output
66K
tokens
Input
$2.00
per 1M
Output
$12.00
per 1M

Activity

Daily period usage
Aggregated managed Everstack traffic. Buckets below 5 tenants or 100 requests are withheld.

Providers

ProviderContextInput /MOutput /M
Google
Google
1M$2.00$12.00
OpenRouter
OpenRouter
1.1M$2.00$12.00
Vertex AI
Vertex AI
1M$2.00$12.00

Pricing

ItemPriceUnit
Input$2.00per 1M tokens
Output$12.00per 1M tokens

Performance

Reliability

Compare

Compare usage and performance
Place this model beside up to three other catalog models.

Capabilities

Capabilities
Modalities
Input
Output
Details
Model ID
google-gemini-3-pro-preview
Family
gemini-3
Status
preview
Knowledge
-
Released
-
Gateway Config
API
2024-01-01
Auth
OPENROUTER_API_KEY
Discovery
dynamic
Provider type
meta

Quick Start

index.ts
import Everstack from "@everstack/node";const client = new Everstack({  apiKey: process.env.EVERSTACK_API_KEY!,  baseUrl: "https://{instance}.{region}.everstack.ai",});const completion = await client.chat.completions.create({  model: "@openrouter/google-gemini-3-pro-preview",  messages: [{ role: "user", content: "Explain vector cache routing." }],});console.log(completion.choices[0]?.message?.content);

Endpoint

Base URL
https://openrouter.ai/api/v1
Chat completions
https://openrouter.ai/api/v1/chat/completions
Model
google-gemini-3-pro-preview
Auth env
OPENROUTER_API_KEY

Gemini 3 Pro (Preview, OR) FAQ

How much does the Gemini 3 Pro (Preview, OR) API cost?

Through OpenRouter, Gemini 3 Pro (Preview, OR) costs $2.00 per 1M input tokens and $12.00 per 1M output tokens.

What is the context window of Gemini 3 Pro (Preview, OR)?

Gemini 3 Pro (Preview, OR) accepts up to 1.1M tokens of context and returns up to 66K output tokens on OpenRouter.

Which providers offer Gemini 3 Pro (Preview, OR)?

Gemini 3 Pro (Preview, OR) is available from Google, OpenRouter and Vertex AI. Everstack can route between them with automatic fallback when one is unavailable.

What can Gemini 3 Pro (Preview, OR) do?

Gemini 3 Pro (Preview, OR) supports chat, function calling, image input and reasoning. It accepts text, image, audio, video and PDF input.

How do I call Gemini 3 Pro (Preview, OR) through Everstack?

Point any OpenAI-compatible SDK at your Everstack gateway and set the model to @openrouter/google-gemini-3-pro-preview. Everstack adds retries, provider fallback, caching, per-tenant budgets and OpenTelemetry traces for every request.