The joint advisory alleged that the Chinese companies targeted U.S. frontier models including Anthropic's Claude, OpenAI's GPT, Google's Gemini, and xAI's Grok, with activity dating back to at least late 2024

From the articleUS Agencies Accuse China-Based AI Firms of ‘Malicious’ Copying of American ModelsAlso in U.S. agencies say top Chinese AI companies systematically copied American models