Safety: A dialog model can achieve high quality (SSI) scores but can be unsafe for users. Therefore, we devise a new
safety metric to measure unsafe model output. This metric follows objectives derived from Google’s AI Principles,2
to avoid unintended results that create risks of harm, and to avoid creating or reinforcing unfair bias. These safety
objectives are described in detail in Appendix A.1.
LaMDA- Language Models for Dialog Applications