[OpenAI and Anthropic Accused of Lobbying to Block Chinese Open-Source Models] According to reports from Cailian Press, OpenAI and Anthropic have engaged in closed-door discussions with U.S. regulators in Washington, aiming to push for stricter restrictions on open-source models. What initially started as a debate over technical approaches has now escalated into a battle over the authority to set industry rules. The core context behind why OpenAI and Anthropic wish to limit open-source models lies in the rapid advancements made by Chinese AI companies in open-source model capabilities in recent years. Open-source models lower the barriers for enterprises and developers to access advanced AI technologies, while also enabling Chinese models to quickly gain global users. Overseas developers and companies can directly download, modify, and deploy these models without incurring high API call fees. This has also intensified competitive pressure on OpenAI and Anthropic.