The White House has asked OpenAI and Anthropic not to share their new artificial intelligence models with the UK government’s testing agency until the models have gone through testing with the US government, POLITICO reported, citing a person familiar with the matter and a senior US administration official, both of whom were granted anonymity to describe the request.

The request, which came from the Office of the National Cyber Director, puts companies in the difficult position of having to choose between withholding their models from UK’s AI Security Institute — one of the most well-resourced government testing agencies in the world which…