Custom GPTs cannot access memory

At the moment, no, a Custom GPT built with the GPT Builder does not have persistent memory across sessions. OpenAI’s Help Center says memory is “not currently supported in custom GPTs,” so each new chat with that GPT starts fresh, even if the user has Memory turned on in ChatGPT. > https://help.openai.com/en/articles/8983148-does-memory-function-with-gpts For your use case, the best workaround is using a Project. > https://help.openai.com/en/articles/10169521-projects-in-chatgpt