LLM-Driven E-Commerce Marketing Content Optimization: Balancing Creativity and Conversion

As e-commerce competition intensifies, balancing creative content with conversion effectiveness becomes critical. Leveraging LLMs' language generation capabilities, we propose a framework that integrates prompt engineering, multi-objective fine-tuning, and post-processing to generate marketing copy that is both engaging and conversion-driven. Our fine-tuning method combines sentiment adjustment, diversity enhancement, and CTA embedding. Through offline evaluations and online A/B tests across categories, our approach achieves a 12.5 % increase in CTR and an 8.3 % increase in CVR while maintaining content novelty. This provides a practical solution for automated copy generation and suggests paths for future multimodal, real-time personalization.

@article{yang2025_2505.23809,
  title={ LLM-Driven E-Commerce Marketing Content Optimization: Balancing Creativity and Conversion },
  author={ Haowei Yang and Haotian Lyu and Tianle Zhang and Dingzhou Wang and Yushang Zhao },
  journal={arXiv preprint arXiv:2505.23809},
  year={ 2025 }
}