Ray Summit was a conference focused on generative AI for developers, with a strong emphasis on `Ray`, an open-source framework for building scalable AI applications. Anyscale's `Anyscale Endpoints` provides accessible open source LLM models, making them more practical for use in various applications. The flexibility of `Ray Serve` is gaining popularity as companies build their next-generation serving platforms on top of it. Generative AI has not significantly changed traditional predictive ML approaches but is focusing on new use cases like chatbots and support systems. However, actual meaningful generative AI use cases are expensive due to the expertise gap and infrastructure challenges. The optimal balance between prompting, fine-tuning, and retrieval augmented generation (RAG) will be use-case specific, with a combination of these techniques likely being the best approach. Smaller task-specific LLMs may become more cost-effective than larger general ones, depending on scale and deployment requirements.