BNBChat is a CHATGPT model developed by Binance Lab, offering diverse user support features including Chatbot AI, Art AI, Developer AI, and an AI Music & Chat App. It's based on OpenAI’s GPT-3 family of large language models, fine-tuned using supervised and reinforcement learning. Related projects include the ChatGPT Coin presale (sale ended) and a canceled fair launch, both leveraging the popularity of OpenAI's chatbot technology.