Enhance Gemini model security with content filters and system instructions

Vertex AI offers content filters and system instructions to mitigate harmful AI-generated content. Content filters act as a post-response defense, blocking outputs containing prohibited material like CSAM and PII. Configurable filters allow for customized thresholds across four harm categories. System instructions proactively guide model behavior, enabling more precise control over content generation. These instructions define safety guidelines, brand voice, and acceptable topics. System instructions offer greater specificity than filters but are more susceptible to jailbreaking. Both methods have limitations; filters might produce false positives, while instructions could lead to over-caution. Using both provides a layered safety approach. Organizations should create evaluation sets to test configurations and measure effectiveness. The optimal strategy depends on specific needs and risk tolerance. Detailed documentation on both features is available for implementation.