Anthropic urges pause in frontier AI development

Anthropic urges a pause in frontier AI development to allow societal alignment research to keep pace. The company's co-founder Jack Clark and researcher Marina Favaro state a credible pause would require global negotiation and monitoring like nuclear accords. Training runs are easier to conceal than missile silos and defection incentives are high. Anthropic reached a $965 billion valuation last week and filed for IPO ahead of OpenAI.