Gerar texto com configurações de segurança

Este exemplo demonstra como usar o modelo Gemini com configurações de segurança para gerar texto.

Mais informações

Para ver a documentação detalhada que inclui este exemplo de código, consulte:

Exemplo de código

Python

Antes de testar esse exemplo, siga as instruções de configuração para Python no Guia de início rápido da Vertex AI sobre como usar bibliotecas de cliente. Para mais informações, consulte a documentação de referência da API Vertex AI para Python.

Para autenticar na Vertex AI, configure o Application Default Credentials. Para mais informações, consulte Configurar a autenticação para um ambiente de desenvolvimento local. 

from google import genai
from google.genai.types import (
    GenerateContentConfig,
    HarmCategory,
    HarmBlockThreshold,
    HttpOptions,
    SafetySetting,
)

client = genai.Client(http_options=HttpOptions(api_version="v1"))

system_instruction = "Be as mean as possible."

prompt = """
    Write a list of 5 disrespectful things that I might say to the universe after stubbing my toe in the dark.
"""

safety_settings = [
    SafetySetting(
        category=HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT,
        threshold=HarmBlockThreshold.BLOCK_LOW_AND_ABOVE,
    ),
    SafetySetting(
        category=HarmCategory.HARM_CATEGORY_HARASSMENT,
        threshold=HarmBlockThreshold.BLOCK_LOW_AND_ABOVE,
    ),
    SafetySetting(
        category=HarmCategory.HARM_CATEGORY_HATE_SPEECH,
        threshold=HarmBlockThreshold.BLOCK_LOW_AND_ABOVE,
    ),
    SafetySetting(
        category=HarmCategory.HARM_CATEGORY_SEXUALLY_EXPLICIT,
        threshold=HarmBlockThreshold.BLOCK_LOW_AND_ABOVE,
    ),
]

response = client.models.generate_content(
    model="gemini-2.5-flash",
    contents=prompt,
    config=GenerateContentConfig(
        system_instruction=system_instruction,
        safety_settings=safety_settings,
    ),
)

# Response will be `None` if it is blocked.
print(response.text)
# Example response:
#     None

# Finish Reason will be `SAFETY` if it is blocked.
print(response.candidates[0].finish_reason)
# Example response:
#     FinishReason.SAFETY

# For details on all the fields in the response
for each in response.candidates[0].safety_ratings:
    print('\nCategory: ', str(each.category))
    print('Is Blocked:', True if each.blocked else False)
    print('Probability: ', each.probability)
    print('Probability Score: ', each.probability_score)
    print('Severity:', each.severity)
    print('Severity Score:', each.severity_score)
# Example response:
#
#     Category:  HarmCategory.HARM_CATEGORY_HATE_SPEECH
#     Is Blocked: False
#     Probability:  HarmProbability.NEGLIGIBLE
#     Probability Score:  2.547714e-05
#     Severity: HarmSeverity.HARM_SEVERITY_NEGLIGIBLE
#     Severity Score: None
#
#     Category:  HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT
#     Is Blocked: False
#     Probability:  HarmProbability.NEGLIGIBLE
#     Probability Score:  3.6103818e-06
#     Severity: HarmSeverity.HARM_SEVERITY_NEGLIGIBLE
#     Severity Score: None
#
#     Category:  HarmCategory.HARM_CATEGORY_HARASSMENT
#     Is Blocked: True
#     Probability:  HarmProbability.MEDIUM
#     Probability Score:  0.71599233
#     Severity: HarmSeverity.HARM_SEVERITY_MEDIUM
#     Severity Score: 0.30782545
#
#     Category:  HarmCategory.HARM_CATEGORY_SEXUALLY_EXPLICIT
#     Is Blocked: False
#     Probability:  HarmProbability.NEGLIGIBLE
#     Probability Score:  1.5624657e-05
#     Severity: HarmSeverity.HARM_SEVERITY_NEGLIGIBLE
#     Severity Score: None

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