After a gain of +1.46 million in two years, someone open-sourced their research system

The project is called AI Berkshire, and the actual trading results are also directly released:
2024: +69.29%
2025: +66.38%
The core is not "AI stock selection," but breaking down the investment frameworks of Buffett, Munger, Duan Yongping, and Li Lu into executable and reviewable research processes

It conducts company research from perspectives such as business model, moat, cash flow, valuation, margin of safety, management, and risk factors, then combines Claude Code / Codex to have multiple Agents simultaneously complete financial report analysis, valuation judgment, cross-validation, and investment memos

The most valuable takeaway from this project is that it does not treat AI as an "answer machine," but rather organizes the judgment paths in real research into a system that can be run repeatedly

For individual investors, this may be more valuable than simply asking AI "Can I buy this stock?"

Project:
Not investment advice, purely sharing for learning