Anthropic Withholds Latest AI Model from UK Safety Tests, Sparking Fears of Tech Protectionism

Anthropic has withheld its latest AI model from the UK's AI Safety Institute (AISI) for the first time, prompting fears inside the British government of a wider protectionist shift among tech groups. The decision, reported by the Financial Times, means the institute—which tests AI for safety and national security risks—cannot evaluate what is likely the company's most advanced system to date. The exclusion marks a dramatic escalation in tensions between London and Silicon Valley over...