You can ensure non-repetitive AI-generated advertisement copy by using controlled randomness, diversity-promoting penalties, and reinforcement learning for creativity.
Here is the code snippet you can refer to:

In the above code, we are using the following key points:
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Repetition Penalty: Reduces repetitive phrases to enhance uniqueness.
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Temperature & Sampling Techniques: Controls creativity without losing coherence.
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Top-K & Top-P Sampling: Ensures diverse yet high-quality word selection.
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Scalability: Adaptable for reinforcement learning to optimize user engagement.
Hence, leveraging controlled randomness, penalty functions, and advanced sampling ensures AI-generated advertisement copy remains high-quality, engaging, and non-repetitive.