White House asks OpenAI and Anthropic to hold new models from UK testers
TL;DR
- On 24 September Politico reported that the US Office of the National Cyber Director asked OpenAI and Anthropic to withhold new frontier models from the UK's AI Security Institute until a US review is done.
- Anthropic has already complied: Claude Mythos 5.1, released on 1 September, went only to a set of US organisations under Project Glasswing.
- AISI's director says it still has pre-release access to some models, naming OpenAI's GPT-6 Astra.
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