How a ChatGPT Question Travels From Keyboard to US Data Center and Back

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A developer traced a single question typed into ChatGPT from a laptop in France, following its path across the internet in about one second. The journey begins with browser steps that package, locate, and encrypt the message before it is sent as light through fibre-optic cables. The message crosses the Atlantic via a subsea cable, reaching OpenAI's servers in Virginia after roughly 45 milliseconds. Before any response is generated, the system authenticates the user, stores the message, and runs safety checks, and the model also receives wrapping instructions beyond the user's text.

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