While people are generally interested in chatting with ChatGPT, as a developer I have been thinking of how to use OpenAI APIs for building business applications. Large Language Models (LLMs) have a data freshness problem. For example, as ChatGPT's knowledge cutoff date is September 2021, it won’t be able to answer questions which require the latest information such as the latest offers / promotions. Also, LLMs don’t have access to proprietary / confidential information. For example, you may have internal company documents you’d like to interact with via an LLM.