Open Source Summit North America 2025

With the increase in generative AI model use, there is a growing concern of how models can divulge information or generate inappropriate content. This concern is leading to the development of technologies to “guardrail” user interactions with models. Some of these guardrails models are simple classification models, while others like IBM’s Granite Guardian or Meta’s Llama Guard are themselves generative models, able to identify multiple risks. As new models appear, a variety of large language model serving solutions are being developed and optimized. An open-sourced example, vllm, has become an increasingly popular serving engine.

In this talk I’ll discuss how we built an open-sourced adapter on top of vllm to serve an API for guardrails models, so that models like Granite Guardian and Llama Guard can be easily applied as guardrails in generative AI workflows.