The true level of domestic RSI: No one dares actually modify model weights, but everyone is changing the "machine for building AI." Author | Gao Yunyi Editor | Cen Feng RSI, or AI building AI, has become an internal scorecard that model companies compete to show off in 2026, and one of the hottest directions in China's primary market. As long as a BP includes the word "Self-Training," its valuation is at least 20 percent higher.But true RSI is not just AI