ChatGPT is only the LLM, and it only creates answers from data encoded in its parameters. That means there is a knowledge cutoff, it only know what was included

ChatGPT is only the LLM, and it only creates answers from data encoded in its parameters. That means there is a knowledge cutoff, it only know what was included in its training set, which includes no newer information than September 2021. BingChat has access to the internet, and the underlying GPT-3.5 can access current information in the form of context attached to each query (in the form of results from a Bing search).