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"What are the main findings? In a nutshell, there are many interesting performance shifts over time. For example, GPT-4 (March 2023) was very good at identifying prime numbers (accuracy 97.6%) but GPT-4 (June 2023) was very poor on these same questions (accuracy 2.4%). Interestingly GPT-3.5 (June 2023) was much better than GPT-3.5 (March 2023) in this task. We hope releasing the datasets and generations can help the community to understand how LLM services drift better."
How is it possible to for the success rate to go from 98% to 2%? What is the author's explanation for this?