OpenAI says it has found evidence that Chinese artificial intelligence start-up DeepSeek used the US company’s proprietary models to train its own open-source competitor, as concerns grow over a potential breach of intellectual property.

It’s impossible to look at the Chinese artificial intelligence startup DeepSeek’s new AI model without comparing it against OpenAI, the dominant American rival.

A new Chinese AI model, created by the Hangzhou-based startup DeepSeek, has stunned the American AI industry by outperforming some of OpenAI’s leading models, displacing ChatGPT at the top of the iOS app store,