AI Berkshire is a value investing research framework compatible with Claude Code and Codex. It systematizes and structures the investment methodologies of Warren Buffett, Charlie Munger, Duan Yongping, and Li Lu, using AI agents to conduct professional investment research. The framework is designed to bring greater depth and efficiency to company analysis while applying principles inspired by four prominent value investors.

The framework supports multi-agent parallel research through `/investment-team`, which launches four independent agents to research the same company simultaneously. Each agent independently searches the web, cross-checks data, performs its own analysis, and reaches its own conclusions rather than simply handling one part of a larger prompt.

After the four agents complete their independent research, a Team Lead synthesizes their findings into a combined analysis. This approach creates a virtual team of AI investment analysts that can examine a company from multiple perspectives, challenge assumptions, verify evidence, and provide a more comprehensive foundation for value investing research.