Add a simple plugin that ChatGPT can use to save and retrieve data (=memory) and tell it how to use it.
Then you have your own computer with ChatGPT acting as CPU.
OpenAI already has it, it’s part of the retrieval plugin:
“A notable feature of the Retrieval Plugin is its capacity to provide ChatGPT with memory. By utilizing the plugin's upsert endpoint, ChatGPT can save snippets from the conversation to the vector database for later reference (only when prompted to do so by the user). This functionality contributes to a more context-aware chat experience by allowing ChatGPT to remember and retrieve information from previous conversations.”