Google

Google: Gemini 3 Pro (Preview)

preview

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

gemini-3-pro-previewgemini-3released Nov 18, 2025
ProviderQuick start
Context
1M
tokens
Max output
64K
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
Cache read$0.20per 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
gemini-3-pro-preview
Family
gemini-3
Status
preview
Knowledge
-
Released
Nov 18, 2025
Gateway Config
API
2024-01-01
Auth
GOOGLE_API_KEY
Discovery
static
Provider type
static

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: "@google/gemini-3-pro-preview",  messages: [{ role: "user", content: "Explain vector cache routing." }],});console.log(completion.choices[0]?.message?.content);

Endpoint

Base URL
https://generativelanguage.googleapis.com/v1
Chat completions
https://generativelanguage.googleapis.com/v1/chat/completions
Model
gemini-3-pro-preview
Auth env
GOOGLE_API_KEY

Gemini 3 Pro (Preview) FAQ

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

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

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

Gemini 3 Pro (Preview) accepts up to 1M tokens of context and returns up to 64K output tokens on Google.

Which providers offer Gemini 3 Pro (Preview)?

Gemini 3 Pro (Preview) 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) do?

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

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

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