US Restores UK AISI Access to OpenAI, Anthropic Models After Ban — SkimNews

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- The US government has restored the UK AI Safety Institute's access to the latest US frontier AI models for safety testing, reversing a prior block.
- OpenAI, Anthropic, and Google DeepMind were ordered last month to stop sharing their frontier models with UK regulators, who had been cut out of reviewing the systems.
Why it matters: The reversal reopens independent UK safety testing of US frontier models — but the episode shows Washington had briefly been willing to deny allied regulators access to its most powerful AI systems, a posture it has now walked back within weeks.
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