OpenAI believes DeepSeek used a process called “distillation,” which helps make smaller AI models perform better by learning from larger ones.

OpenAI itself has been accused of building ChatGPT by inappropriately accessing content it didn't have the rights to.

OpenAI says it is reviewing evidence that Chinese startup DeepSeek broke its terms of service by harvesting large amounts of data from its artificial intelligence technologies. The San Francisco-based startup,