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. The San Francisco-based ChatGPT maker told the FT it had seen some evidence of “distillation”,

Microsoft’s close partner and collaborator, OpenAI, might be suggesting that DeepSeek stole its IP and violated its terms of service. But Microsoft still wants DeepSeek’s shiny new models on its cloud platform.