The CEO of OpenAI, Sam Altman, has confirmed that GPT-5 is not in training and will not be for some time. This is in response to an open letter calling for a pause on the training of AI systems more powerful than GPT-4. Altman emphasizes the importance of safety issues and caution in releasing GPT-5, as emergent abilities can arise spontaneously from the interactions and complexities within a system. OpenAI is testing and making GPT-4 even safer, building it on years of alignment research that they pursued in anticipation of models like GPT-4. Altman also agrees that OpenAI should release its alignment data set and alignment evaluations to other companies to ensure AI safety.