Another possibility is that ChatGPT was accessed during the process of training DeepSeek using rapid queries against the ChatGPT system. Doing so wouldn’t constitute espionage or theft of trade secrets; however, it could still provide a basis for legal action. The third possibility is that DeepSeek was trained on bodies of information …

​https://hls.harvard.edu/today/deepseek-chatgpt-and-the-global-fight-for-technological-supremacy/