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了解和使用安全设置
使用集合让一切井井有条根据您的偏好保存内容并对其进行分类。

您可以使用安全设置来调整收到可能被视为有害的回答的可能性。默认情况下，安全设置会屏蔽在所有维度中不安全概率为中等和/或较高的内容。

跳转到Gemini安全设置跳转到Imagen安全设置

适用于 Gemini 模型的安全设置

点击您的 Gemini API 提供商，在本页面上查看特定于提供商的内容和代码。

如需详细了解 Gemini 型号的安全设置，请参阅 Gemini Developer API 文档。

Swift

您可以在创建 GenerativeModel 实例时配置 SafetySettings。

包含一个安全设置的示例：


import FirebaseAI

// Initialize the Gemini Developer API backend service
// Create an `GenerativeModel` instance and add safety settings to its config
let model = FirebaseAI.firebaseAI(backend: .googleAI()).generativeModel(
  modelName: "GEMINI_MODEL_NAME",
  safetySettings: [
    SafetySetting(harmCategory: .harassment, threshold: .blockOnlyHigh)
  ]
)

// ...

包含多个安全设置的示例：


import FirebaseAI

let harassmentSafety = SafetySetting(harmCategory: .harassment, threshold: .blockOnlyHigh)
let hateSpeechSafety = SafetySetting(harmCategory: .hateSpeech, threshold: .blockMediumAndAbove)

// Initialize the Gemini Developer API backend service
// Create an `GenerativeModel` instance and add safety settings to its config
let model = FirebaseAI.firebaseAI(backend: .googleAI()).generativeModel(
  modelName: "GEMINI_MODEL_NAME",
  safetySettings: [harassmentSafety, hateSpeechSafety]
)

// ...

Kotlin

您可以在创建 GenerativeModel 实例时配置 SafetySettings。

包含一个安全设置的示例：


import com.google.firebase.vertexai.type.HarmBlockThreshold
import com.google.firebase.vertexai.type.HarmCategory
import com.google.firebase.vertexai.type.SafetySetting

// Create a `GenerativeModel` instance and add safety settings to its config
val model = Firebase.ai(backend = GenerativeBackend.googleAI()).generativeModel(
    modelName = "GEMINI_MODEL_NAME",
    safetySettings = listOf(
        SafetySetting(HarmCategory.HARASSMENT, HarmBlockThreshold.ONLY_HIGH)
    )
)

// ...

包含多个安全设置的示例：


import com.google.firebase.vertexai.type.HarmBlockThreshold
import com.google.firebase.vertexai.type.HarmCategory
import com.google.firebase.vertexai.type.SafetySetting

val harassmentSafety = SafetySetting(HarmCategory.HARASSMENT, HarmBlockThreshold.ONLY_HIGH)
val hateSpeechSafety = SafetySetting(HarmCategory.HATE_SPEECH, HarmBlockThreshold.MEDIUM_AND_ABOVE)

// Create a `GenerativeModel` instance and add safety settings to its config
val model = Firebase.ai(backend = GenerativeBackend.googleAI()).generativeModel(
    modelName = "GEMINI_MODEL_NAME",
    safetySettings = listOf(harassmentSafety, hateSpeechSafety)
)

// ...

Java

您可以在创建 GenerativeModel 实例时配置 SafetySettings。


SafetySetting harassmentSafety = new SafetySetting(HarmCategory.HARASSMENT,
HarmBlockThreshold.ONLY_HIGH);

// Create an `GenerativeModel` instance and add safety settings to its config
GenerativeModelFutures model = GenerativeModelFutures.from(
        FirebaseAI.getInstance(GenerativeBackend.googleAI())
                .generativeModel(
                  /* modelName */ "IMAGEN_MODEL_NAME",
                  /* generationConfig is optional */ null,
                  Collections.singletonList(harassmentSafety)
                );
);

// ...

包含多个安全设置的示例：


SafetySetting harassmentSafety = new SafetySetting(HarmCategory.HARASSMENT,
HarmBlockThreshold.ONLY_HIGH);

SafetySetting hateSpeechSafety = new SafetySetting(HarmCategory.HATE_SPEECH,
HarmBlockThreshold.MEDIUM_AND_ABOVE);

// Create an `GenerativeModel` instance and add safety settings to its config
GenerativeModelFutures model = GenerativeModelFutures.from(
        FirebaseAI.getInstance(GenerativeBackend.googleAI())
                .generativeModel(
                  /* modelName */ "IMAGEN_MODEL_NAME",
                  /* generationConfig is optional */ null,
                  List.of(harassmentSafety, hateSpeechSafety)
                );
);

// ...

Web

您可以在创建 GenerativeModel 实例时配置 SafetySettings。

包含一个安全设置的示例：


import { HarmBlockThreshold, HarmCategory, getAI, getGenerativeModel, GoogleAIBackend } from "firebase/ai";

// ...

// Initialize the Gemini Developer API backend service
const ai = getAI(firebaseApp, { backend: new GoogleAIBackend() });

const safetySettings = [
  {
    category: HarmCategory.HARM_CATEGORY_HARASSMENT,
    threshold: HarmBlockThreshold.BLOCK_ONLY_HIGH,
  },
];

// Create a `GenerativeModel` instance and add safety settings to its config
const model = getGenerativeModel(ai, { model: "GEMINI_MODEL_NAME", safetySettings });

// ...

包含多个安全设置的示例：


import { HarmBlockThreshold, HarmCategory, getAI, getGenerativeModel, GoogleAIBackend } from "firebase/ai";

// ...

// Initialize the Gemini Developer API backend service
const ai = getAI(firebaseApp, { backend: new GoogleAIBackend() });

const safetySettings = [
  {
    category: HarmCategory.HARM_CATEGORY_HARASSMENT,
    threshold: HarmBlockThreshold.BLOCK_ONLY_HIGH,
  },
  {
    category: HarmCategory.HARM_CATEGORY_HATE_SPEECH,
    threshold: HarmBlockThreshold.BLOCK_MEDIUM_AND_ABOVE,
  },
];

// Create a `GenerativeModel` instance and add safety settings to its config
const model = getGenerativeModel(ai, { model: "GEMINI_MODEL_NAME", safetySettings });

// ...

Dart

您可以在创建 GenerativeModel 实例时配置 SafetySettings。

包含一个安全设置的示例：


// ...

final safetySettings = [
  SafetySetting(HarmCategory.harassment, HarmBlockThreshold.high)
];

// Initialize the Gemini Developer API backend service
// Create a `GenerativeModel` instance and add safety settings to its config
final model = FirebaseAI.googleAI().generativeModel(
  model: 'GEMINI_MODEL_NAME',
  safetySettings: safetySettings,
);

// ...

包含多个安全设置的示例：


// ...

final safetySettings = [
  SafetySetting(HarmCategory.harassment, HarmBlockThreshold.high),
  SafetySetting(HarmCategory.hateSpeech, HarmBlockThreshold.high),
];

// Initialize the Gemini Developer API backend service
// Create a `GenerativeModel` instance and add safety settings to its config
final model = FirebaseAI.googleAI().generativeModel(
  model: 'GEMINI_MODEL_NAME',
  safetySettings: safetySettings,
);

// ...

Unity

您可以在创建 GenerativeModel 实例时配置 SafetySettings。

包含一个安全设置的示例：


// ...

// Initialize the Gemini Developer API backend service
// Create a `GenerativeModel` instance and add safety settings to its config
var ai = FirebaseAI.GetInstance(FirebaseAI.Backend.GoogleAI());
var model = ai.GetGenerativeModel(
  modelName: "GEMINI_MODEL_NAME",
  safetySettings: new SafetySetting[] {
    new SafetySetting(HarmCategory.Harassment, SafetySetting.HarmBlockThreshold.OnlyHigh)
  }
);

// ...

包含多个安全设置的示例：


// ...

var harassmentSafety = new SafetySetting(HarmCategory.Harassment, SafetySetting.HarmBlockThreshold.OnlyHigh);
var hateSpeechSafety = new SafetySetting(HarmCategory.HateSpeech, SafetySetting.HarmBlockThreshold.MediumAndAbove);

// Initialize the Vertex AI Gemini API backend service
// Create a `GenerativeModel` instance and add safety settings to its config
var ai = FirebaseAI.GetInstance(FirebaseAI.Backend.GoogleAI());
var model = ai.GetGenerativeModel(
  modelName: "GEMINI_MODEL_NAME",
  safetySettings: new SafetySetting[] { harassmentSafety, hateSpeechSafety }
);

// ...

适用于 Imagen 模型的安全设置

点击您的 Gemini API 提供商，在本页面上查看特定于提供商的内容和代码。

如需了解 Imagen 模型的所有受支持的安全设置及其可用值，请参阅 Google Cloud 文档。

Swift

您可以在创建 ImagenModel 实例时配置 ImagenSafetySettings。


import FirebaseAI

// Initialize the Gemini Developer API backend service
// Create an `ImagenModel` instance and add safety settings to its config
let model = FirebaseAI.firebaseAI(backend: .googleAI()).imagenModel(
  modelName: "IMAGEN_MODEL_NAME",
  safetySettings: ImagenSafetySettings(
    safetyFilterLevel: .blockLowAndAbove,
    personFilterLevel: .allowAdult
  )
)

// ...

Kotlin

您可以在创建 ImagenModel 实例时配置 ImagenSafetySettings。


// Initialize the Vertex AI Gemini API backend service
// Create an `ImagenModel` instance and add safety settings to its config
val model = Firebase.ai(backend = GenerativeBackend.googleAI()).imagenModel(
  modelName = "IMAGEN_MODEL_NAME",
  safetySettings = ImagenSafetySettings(
    safetyFilterLevel = ImagenSafetyFilterLevel.BLOCK_LOW_AND_ABOVE,
    personFilterLevel = ImagenPersonFilterLevel.BLOCK_ALL
  )
)

// ...

Java

您可以在创建 ImagenModel 实例时配置 ImagenSafetySettings。


// Create an `ImagenModel` instance and add safety settings to its config
ImagenModelFutures model = ImagenModelFutures.from(
        FirebaseAI.getInstance(GenerativeBackend.googleAI())
                .imagenModel(
                  /* modelName */ "IMAGEN_MODEL_NAME",
                  /* imageGenerationConfig */ null);
);

// ...

Web

您可以在创建 ImagenModel 实例时配置 ImagenSafetySettings。


// ...

// Initialize the Gemini Developer API backend service
const ai = getAI(firebaseApp, { backend: new GoogleAIBackend() });

// Create an `ImagenModel` instance and add safety settings to its config
const model = getImagenModel(
  ai,
  {
    model: "IMAGEN_MODEL_NAME",
    safetySettings: {
      safetyFilterLevel: ImagenSafetyFilterLevel.BLOCK_LOW_AND_ABOVE,
      personFilterLevel: ImagenPersonFilterLevel.ALLOW_ADULT,
    }
  }
);

// ...

Dart

您可以在创建 ImagenModel 实例时配置 ImagenSafetySettings。


// ...

// Initialize the Gemini Developer API backend service
// Create an `ImagenModel` instance and add safety settings to its config
final model = FirebaseAI.googleAI().imagenModel(
  model: 'IMAGEN_MODEL_NAME',
  safetySettings: ImagenSafetySettings(
    ImagenSafetyFilterLevel.blockLowAndAbove,
    ImagenPersonFilterLevel.allowAdult,
  ),
);

// ...

Unity

Unity 尚不支持使用 Imagen，但请稍后再回来查看！

用于控制内容生成的其他选项

详细了解问题设计，以便影响模型生成符合您需求的输出。
配置模型参数以控制模型如何生成回答。对于 Gemini 模型，这些参数包括输出 token 数上限、温度、topK 和 topP。对于 Imagen 模型，这些包括宽高比、生成人物、添加水印等。
设置系统指令，以引导模型的行为。此功能类似于您在模型接触到最终用户的任何进一步指令之前添加的序言。
将回答架构与提示一起传递，以指定特定的输出架构。此功能最常用于生成 JSON 输出，但也可以用于分类任务（例如，当您希望模型使用特定标签或标记时）。

如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。

最后更新时间 (UTC)：2025-05-21。