Microsoft now hosts AI model accused of copying OpenAI data

In another way, though, the move is a stamp of legitimacy on an AI model that has caused consternation for OpenAI over the past week. The controversy primarily centers on whether DeepSeek used OpenAI’s models to produce outputs (synthetic data) that DeepSeek then used to train or fine-tune its own models, a practice often called “distillation,” which is against OpenAI’s terms of service.

Since the launch of DeepSeek V3 (a large language model that served as the…