Anthropic is seeing some high-profile departures just ahead of its IPO. Catherine “Cat” Wu, who has spent the last two years as Anthropic’s. OpenAI CEO Sam Altman has reacted to rival Anthropic getting banned by the US government and being labelled a ‘supply chain risk to national security’. Notably, the ChatGPT maker announced on the. OpenAI has banned its AI Agent, Codex, from mentioning goblins and other mythical creatures.