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Can We Replicate the Performance of a Closed Source Language Model?
Open source models like Vicuna and llama may resemble GPT-4 chat, but their factuality decreases when fine-tuned on different tasks. While open source variants of proprietary models can be created, they are generally less competent and face serious issues, including factuality. This post provides a detailed summary of a recent paper on the false promise of imitating proprietary language models.