Yes, the new Bing runs on **OpenAI’s GPT-4** model which has been customized for search?. ChatGPT is based on the older **GPT 3.5-turbo** model?. Bing's AI is optimized for understanding natural language processing better, which allows it to provide more accurate and relevant search results?. Bing's AI is trained on a vast dataset of search queries and click-through data, while ChatGPT is trained on an even more extensive dataset of text sources?. Bing offers a chatbot feature that can quickly and accurately provide information to customers, while ChatGPT is highly customizable and can handle a variety of queries and provide personalized responses?.