Microsoft and OpenAI are investigating if DeepSeek accessed data without permission, with reports suggesting DeepSeek used OpenAI’s API to transfer large data volumes. Microsoft suspects the stolen data helped “distill” ChatGPT’s knowledge into DeepSeek’s R1 model,

Sources at Open AI believe DeepSeek unlawfully distilled data from ChatGPT, Open AI and Microsoft begin investigation.

Microsoft and OpenAI are investigating whether data output from OpenAI’s technology was obtained in an unauthorized manner by a group linked to Chinese artificial intelligence startup DeepSeek, according to people familiar with the matter.