In-depth analysis of RSI: When AI begins to realize self-iteration improvement

2026 is destined to be an extraordinary year. There are so many new AI concepts, frameworks, and various Agent Harnesses that have exploded this year, making it overwhelming. A concept that has been discussed a lot in recent months and that everyone wants to know is called "RSI". RSI is not a very new concept, but its sudden popularity mainly dates back to June 4, 2026. Anthropic published an article called "When AI builds itself", which directly discussed the concept of RSI, showed some data of Anthropic's internal AI-assisted research and development, and discussed the possibility and impact of AI starting to independently iterate its own subsequent models.