OpenAI, Google, and Anthropic are collaborating to prevent Chinese firms from copying AI models using distillation techniques. The companies are sharing intelligence through the Frontier Model Forum to detect unauthorized extraction of model outputs. Distillation allows developers to replicate advanced AI systems at lower cost. U.S. AI companies warned imitation models could remove safety guardrails and reduce competitiveness. The collaboration reflects growing geopolitical and competitive concerns in the global AI race and highlights efforts to protect intellectual property and maintain AI leadership.