Which conversational large language model is developed by OpenAI to generate human-like text?

The correct answer is ChatGPT, which is a conversational large language model developed by OpenAI specifically designed to generate human-like text responses. This model builds on the advancements made in previous iterations, such as GPT-2, but is optimized for conversation, enabling it to understand context, maintain dialogue coherence, and produce responses that are more relevant and engaging in a chat-like format. ChatGPT leverages deep learning techniques and a vast amount of training data to ensure that its outputs closely mimic natural human communication.

In contrast, GPT-2, while also created by OpenAI, is primarily a text generation model and does not focus specifically on conversational contexts. BERT and T5, though influential in the field of natural language processing, serve different purposes; BERT is designed for understanding the meaning of text and is commonly used for tasks that require context comprehension, while T5 is a text-to-text transformer model that formulates every task as a text generation problem rather than being specifically optimized for conversation. ChatGPT stands out as the model explicitly tailored for interactive dialogue, making it the most fitting answer to the question.