xbtlin/ai-berkshire
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Berkshire in the AI Era: A Value Investing Research Framework Based on Claude Code / Codex. Methodologies of Buffett Munger, Duan Yongping, and Li Lu + Parallel Research on Multiple Agents. | AI-era Berkshire: a value investing research framework built for Claude Code / Codex.
Overview
"Price is what you pay, value is what you get." — Warren Buffett redefines the depth and efficiency of investment research with AI. It is a collection of investment research skills compatible with both Claude Code and Codex, systematizing and structuring the methodologies of four value investing masters—Buffett, Munger, Duan Yongping, and Li Lu—and enabling professional-level investment research through AI Agents. 📮 Companies truly worth studying in depth, along with my own judgments and choices beyond the report, are all on the WeChat public account """—scan the code to follow ↓ The warehouse contains a complete framework and full report, while the official account is about **—a company truly worth studying in depth. Beyond the report, I also made my own judgments and trade-offs: Of course, you can directly ask Claude: "Help me analyze whether Pinduoduo is worth buying." You will receive a balanced analysis of "On one hand..." On the other hand..." and end with "Investment carries risks, please judge for yourself." AI Berkshire doesn't solve the problem of "can it analyze," but the ** problem. Here are the core differences: Ask AI directly, and you'll get a "analysis" that pleases both sides. AI Berkshire forces output: with specific price ranges and layered recommendations. General AI answers: "Pinduoduo has growth potential but also faces competitive pressure. Investors need to weigh the options..." AI Berkshire output:
Overview (machine translated)
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AI Berkshire - A Value Investing Research Framework for the AI Era
“Price is what you pay, value is what you get.” — Warren Buffett
Redefining the depth and efficiency of investment research with AI.
AI Berkshire is a collection of investment research skills compatible with both Claude Code and Codex, systematizing and structuring the methodologies of four value investing masters—Buffett, Munger, Duan Yongping, and Li Lu—and enabling professional-level investment research through AI Agents.
One person + Claude Code / Codex = one investment research team.
📮 > ** The warehouse is a full-volume framework, while the public account is a featured selection. ** Companies truly worth in-depth research, along with my own judgments and trade-offs beyond the report, are all available on the WeChat public account “Compound Interest Alchemy Furnace” — scan the QR code to follow ↓
📖 > Want to read reports? Use Reading Station: Finished reports organized by company, topic, and time, easy to read on both computer and mobile, and can search and remember reading progress.
📊 > All 2,265 reports (including working papers) · 110 companies · 27 topics; the full directory on GitHub can be found in the Research Report Index, updated as of 2026-10-22.
📖 Reading Site · Live Trading Performance · Why Can’t You Ask AI Directly · Overview of Skills · Get Started Quickly · Practical Report · Research Index · Design Philosophy · Official Account
Real Track Record
is not just theoretical talk. Behind this framework is a real investment system verified by real money.
2024 Full-Year Return: +69.29%
Full-Year 2025 Return: +66.38%
Comparison with major indices
| Indicators | Full Year 2024 | Full Year 2025 |
|---|---|---|
| This Frame Real Transaction | +69.29% | +66.38% |
| Hang Seng Index | +17.67% | +27.77% |
| S&P 500 | +23.31% | +16.39% |
| CSI 300 | +14.68% | +17.66% |
| Nasdaq | +28.64% | +20.36% |
2024 Excess Returns: Outperform the S&P 500 by 46 percentage points, outperform the Hang Seng Index by 52 percentage points
2025 Excess Returns: Outperform the S&P 500 50 percentage points, outperform the Hang Seng Index 39 percentage points
Over two years, cumulative live trading returns exceeded 1.46 million yuan, significantly outperforming major global indices for two consecutive years.
*Disclaimer: Historical returns do not represent future performance. Screenshots are from Futu Securities’ real account. *
Selected Research First Published on WeChat Official Account
The warehouse contains a complete framework and a full report, while the official account is a Selected — a company truly worth studying, plus my own judgments and trade-offs beyond the report:
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Install
npx skillfish add xbtlin/ai-berkshire