Late last year, ChatGPT took the internet by storm. Many have heralded the large language model (LLM) as a new era of technology. Since ChatGPT's parent company, OpenAI, released it to the public, other tech giants are jumping in. Bing, Microsoft's search engine, debuted a limited release of its helpful AI. Google is also working out the kinks in its version, named "Bard." But what's going on under the hood?