ChatGPT is a generalized chat application built on GPT 3.5 and was developed by OpenAI. It is an open source application and is being offered for free right now although it sounds like OpenAI will be monetizing it at some point in the future. Here is a good overall general explanation of ChatGPT. Some have described it as "scary good".

This Harvard Business Review article describes the technology and gives some application examples beyond Chatbot applications including writing code and other written communication beyond chat bots such as marketing copy, teaching materials, etc. This author believes that ChatGPT is a major step forward in generative AI for written communication. One of the significant changes is the ability to have AI and humans work together on complex writing tasks.

This HBR article provides both a perspective on ChatGPT and also some examples of how industries have been disrupted by AI in the past both to automate existing processes and to create entirely new business model opportunities. This author believes that ChatGPT has significant potential to create many new business model opportunities.

If you currently have chatbot functionality in your SaaS application ChatGPT is an opportunity for you and/or your competitors to upgrade this functionality significantly. Customer success, customer support and eCommerce are application areas where there is significant opportunity. Any application which supports communication to end users or generates written communication provides significant opportunity for you to use ChatGPT to improve your product.