Shortly after US-based Anthropic released ClaudeFable5, the government issued an export control directive. The need for Japanese companies to consider a strategy of moving away from reliance on a single model is emerging.
On 9 June 2026, US-based Anthropic made the high-performance model ClaudeFable5 generally available, describing it as a model with safety measures in place for ClaudeMythos5, which had been considered highly dangerous.
Just 3 days after its release, the US government issued an export control directive, and reports said that export controls on Fable-series models had been strengthened. This could lead to a reshaping of the international regulatory environment governing the provision and use of AI models.
Against this backdrop, the article argues that Japanese companies should consider moving away from reliance on a single model as a strategy for the future.