You can use some clever prompts to see this summarization in action. I had a long conversation with chatgpt, asking it about a book, and provide plot summaries

You can use some clever prompts to see this summarization in action. I had a long conversation with chatgpt, asking it about a book, and provide plot summaries, and asking about specific characters. After about 40-50 questions, I asked it questions like how many questions I have asked in this conversation and what they were. Eventually I was able to get it to print out the questions I asked, and they all got shortened (a lot!).