If you look at the developer docs ( https://platform.openai.com/docs/models ) you'll see that the models' knowledge cutoff dates are October 2023, but if you ask ChatGPT (GPT-4o mini, without a search feature): "Who won the latest presidential election?" it answers "Congress has certified Donald J. Trump as the winner of the 2024 Presidential Election (...)." How does it know that? Would it perhaps be consulting some kind of RAG knowledge base of popular facts?
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How does ChatGPT know recent events if the knowledge cutoff is Oct 2023? | Heykuki News