No, GPT-4 is just an inference model. Any access to any other system (including uploaded documents) has to be implemented by the services that drive this model.
If you use GPT-4 through the API, you’re responsible for providing those services as appropriate.
If you use ChatGPT, OpenAI has a variety of mechanisms you can use, such as adding plugins that might let the system request information from the internet as part of a chat session.
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