We used GPT-5.5 in the European e-commerce customer service system, which saved 62% of the manpower, but we encountered two fatal pitfalls.
This article is based on the real experiences of a Dutch small and medium-sized e-commerce team and provides a detailed explanation of the actual capabilities of GPT-5.5: the error rate for multilingual address recognition has been reduced to 0.7%, and costs have been decreased by 62%. It also shares practical challenges such as information completion illusions and high fine-tuning costs. The article offers clear guidelines on when to use GPT-5.5 and tips for getting started, making it suitable for cross-border business developers to refer to.