We are using GPT model for our nlp chatbot project & in order to fine tune & train the data of close to 1000 pdf documents what would be the hardware requirements of what would be the required GPU size
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Since this is a cloud service, you can probably get away with a wifi-enabled arduino to be honest 
If you’re talking about stuff like rag retrieval, 1000 documents aren’t that many (depending on their size) - you may not really need a powerful computer at all.