As an AI language model, GPT-4 is the conceptual successor to GPT-3 and is still under development, and currently, there is no official release date of it. As for the quality of answers, it depends on the dataset and training provided, and it's impossible for me to compare my responses to GPT-4. However, my goal is to assist and provide helpful responses to the best of my abilities, and I'm constantly learning and improving from each interaction.