Google Gen AI SDK

Google 생성형 AI SDK는 Gemini Enterprise Agent Platform의 Gemini Developer API와 Gemini API를 통해 Gemini 모델에 대한 통합 인터페이스를 제공합니다. 몇 가지 예외를 제외하고 한 플랫폼에서 실행되는 코드는 두 플랫폼 모두에서 실행됩니다. 즉, Gemini Developer API를 사용하여 애플리케이션의 프로토타입을 제작한 후 코드를 다시 작성하지 않고도 애플리케이션을 Gemini Enterprise Agent Platform으로 마이그레이션할 수 있습니다.

Gemini 개발자 API와 Gemini Enterprise Agent Platform의 Gemini 간의 차이점에 대해 자세히 알아보려면 Gemini 개발자 API에서 Gemini Enterprise Agent Platform의 Gemini API로 마이그레이션을 참고하세요.

Python

Python용 Google Gen AI SDK는 PyPI 및 GitHub에서 사용 가능합니다.

자세한 내용은 Python SDK 참조를 확인하세요.

설치

pip install --upgrade google-genai

Vertex AI에서 Gen AI SDK를 사용하도록 환경 변수를 설정합니다. 

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_ENTERPRISE=True

빠른 시작

Agent Platform을 익스프레스 모드로 사용하고 있는지에 따라 다음 옵션 중 하나를 선택합니다.

  • Agent Platform (모든 Google Cloud 기능 및 서비스 포함) 사용
from google import genai
from google.genai.types import HttpOptions

client = genai.Client(http_options=HttpOptions(api_version="v1"))
response = client.models.generate_content(
    model="gemini-2.5-flash",
    contents="How does AI work?",
)
print(response.text)
# Example response:
# Okay, let's break down how AI works. It's a broad field, so I'll focus on the ...
#
# Here's a simplified overview:
# ...
  • 익스프레스 모드에서 Agent Platform 사용
from google import genai

# TODO(developer): Update below line
API_KEY = "YOUR_API_KEY"

client = genai.Client(vertexai=True, api_key=API_KEY)

response = client.models.generate_content(
    model="gemini-2.5-flash",
    contents="Explain bubble sort to me.",
)

print(response.text)
# Example response:
# Bubble Sort is a simple sorting algorithm that repeatedly steps through the list

Go

Go용 Google Gen AI SDK는 go.dev 및 GitHub에서 사용 가능합니다.

설치

go get google.golang.org/genai

Vertex AI에서 Gen AI SDK를 사용하도록 환경 변수를 설정합니다. 

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_ENTERPRISE=True

빠른 시작

import (
	"context"
	"fmt"
	"io"

	"google.golang.org/genai"
)

// generateWithText shows how to generate text using a text prompt.
func generateWithText(w io.Writer) error {
	ctx := context.Background()

	client, err := genai.NewClient(ctx, &genai.ClientConfig{
		HTTPOptions: genai.HTTPOptions{APIVersion: "v1"},
	})
	if err != nil {
		return fmt.Errorf("failed to create genai client: %w", err)
	}

	resp, err := client.Models.GenerateContent(ctx,
		"gemini-2.5-flash",
		genai.Text("How does AI work?"),
		nil,
	)
	if err != nil {
		return fmt.Errorf("failed to generate content: %w", err)
	}

	respText := resp.Text()

	fmt.Fprintln(w, respText)
	// Example response:
	// That's a great question! Understanding how AI works can feel like ...
	// ...
	// **1. The Foundation: Data and Algorithms**
	// ...

	return nil
}

Node.js

TypeScript 및 JavaScript용 Google Gen AI SDK는 npm 및 GitHub에서 사용 가능합니다.

설치

npm install @google/genai

Vertex AI에서 Gen AI SDK를 사용하도록 환경 변수를 설정합니다. 

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_ENTERPRISE=True

빠른 시작

/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import {GoogleGenAI} from '@google/genai';

const GEMINI_API_KEY = process.env.GEMINI_API_KEY;
const GOOGLE_CLOUD_PROJECT = process.env.GOOGLE_CLOUD_PROJECT;
const GOOGLE_CLOUD_LOCATION = process.env.GOOGLE_CLOUD_LOCATION;
const GOOGLE_GENAI_USE_VERTEXAI = process.env.GOOGLE_GENAI_USE_VERTEXAI;

async function generateContentFromMLDev() {
  const ai = new GoogleGenAI({vertexai: false, apiKey: GEMINI_API_KEY});
  const response = await ai.models.generateContent({
    model: 'gemini-2.0-flash',
    contents: 'why is the sky blue?',
  });
  console.debug(response.text);
}

async function generateContentFromVertexAI() {
  const ai = new GoogleGenAI({
    vertexai: true,
    project: GOOGLE_CLOUD_PROJECT,
    location: GOOGLE_CLOUD_LOCATION,
  });
  const response = await ai.models.generateContent({
    model: 'gemini-2.0-flash',
    contents: 'why is the sky blue?',
  });
  console.debug(response.text);
}

async function main() {
  if (GOOGLE_GENAI_USE_VERTEXAI) {
    await generateContentFromVertexAI().catch((e) =>
      console.error('got error', e),
    );
  } else {
    await generateContentFromMLDev().catch((e) =>
      console.error('got error', e),
    );
  }
}

main();

Java

Java용 Google Gen AI SDK는 Maven Central 및 GitHub에서 사용 가능합니다.

Maven 설치

<dependencies>
  <dependency>
    <groupId>com.google.genai</groupId>
    <artifactId>google-genai</artifactId>
    <version>1.4.1</version>
  </dependency>
</dependencies>

Vertex AI에서 Gen AI SDK를 사용하도록 환경 변수를 설정합니다. 

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_ENTERPRISE=True

빠른 시작

/*
 * Copyright 2025 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Usage:
 *
 * <p>1a. If you are using Vertex AI, setup ADC to get credentials:
 * https://cloud.google.com/docs/authentication/provide-credentials-adc#google-idp
 *
 * <p>Then set Project, Location, and USE_VERTEXAI flag as environment variables:
 *
 * <p>export GOOGLE_CLOUD_PROJECT=YOUR_PROJECT
 *
 * <p>export GOOGLE_CLOUD_LOCATION=YOUR_LOCATION
 *
 * <p>export GOOGLE_GENAI_USE_VERTEXAI=true
 *
 * <p>1b. If you are using Gemini Developer API, set an API key environment variable. You can find a
 * list of available API keys here: https://aistudio.google.com/app/apikey
 *
 * <p>export GOOGLE_API_KEY=YOUR_API_KEY
 *
 * <p>2. Compile the java package and run the sample code.
 *
 * <p>mvn clean compile exec:java -Dexec.mainClass="com.google.genai.examples.GenerateContent"
 * -Dexec.args="YOUR_MODEL_ID"
 */
package com.google.genai.examples;

import com.google.genai.Client;
import com.google.genai.types.GenerateContentResponse;

/** An example of using the Unified Gen AI Java SDK to generate content. */
public final class GenerateContent {
  public static void main(String[] args) {
    final String modelId;
    if (args.length != 0) {
      modelId = args[0];
    } else {
      modelId = Constants.GEMINI_MODEL_NAME;
    }

    // Instantiate the client. The client by default uses the Gemini Developer API. It gets the API
    // key from the environment variable `GOOGLE_API_KEY`. Vertex AI API can be used by setting the
    // environment variables `GOOGLE_CLOUD_LOCATION` and `GOOGLE_CLOUD_PROJECT`, as well as setting
    // `GOOGLE_GENAI_USE_VERTEXAI` to "true".
    //
    // Note: Some services are only available in a specific API backend (Gemini or Vertex), you will
    // get a `UnsupportedOperationException` if you try to use a service that is not available in
    // the backend you are using.
    Client client = new Client();

    if (client.vertexAI()) {
      System.out.println("Using Vertex AI");
    } else {
      System.out.println("Using Gemini Developer API");
    }

    GenerateContentResponse response =
        client.models.generateContent(modelId, "What is your name?", null);

    // Gets the text string from the response by the quick accessor method `text()`.
    System.out.println("Unary response: " + response.text());

    // Gets the http headers from the response.
    response
        .sdkHttpResponse()
        .ifPresent(
            httpResponse ->
                System.out.println("Response headers: " + httpResponse.headers().orElse(null)));
  }

  private GenerateContent() {}
}

C#

.NET용 Google 생성형 AI SDK는 NuGet 및 GitHub에서 사용 가능합니다.

설치

dotnet add package Google.GenAI

Vertex AI에서 Gen AI SDK를 사용하도록 환경 변수를 설정합니다. 

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_ENTERPRISE=True

빠른 시작

/*
 * Copyright 2025 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using Google.GenAI;
using Google.GenAI.Types;

public class GenerateContentSimpleText {
  public static async Task SendRequestAsync() {
    string apiKey = System.Environment.GetEnvironmentVariable("GOOGLE_API_KEY");
    var geminiClient = new Client(apiKey: apiKey);
    try {
      var geminiResponse = await geminiClient.Models.GenerateContentAsync(
          model: "gemini-2.0-flash", contents: "What is the capital of France?");
      Console.WriteLine("Gemini API Response:");
      Console.WriteLine(geminiResponse.Text);
    } catch (HttpRequestException ex) {
      Console.WriteLine($"An error occurred with Gemini API: {ex.ToString()}");
    }

    string project = System.Environment.GetEnvironmentVariable("GOOGLE_CLOUD_PROJECT");
    string location = System.Environment.GetEnvironmentVariable("GOOGLE_CLOUD_LOCATION") ?? "us-central1";
    Content contents = new Content {
      Role = "user", Parts = new List<Part> { new Part { Text = "What is the capital of France?" } }
    };

    var vertexClient = new Client(project: project, location: location, vertexAI: true);
    try {
      var vertexResponse = await vertexClient.Models.GenerateContentAsync(model: "gemini-2.0-flash",
                                                                          contents: contents);
      Console.WriteLine("Vertex AI API Response:");
      Console.WriteLine(vertexResponse.Text);
    } catch (Exception ex) {
      Console.WriteLine($"An error occurred with Vertex AI API: {ex.Message}");
    }
  }
}