---
title: "I Turned Karpathy's Second Brain Into an AI Operating System"
source_url: https://youtu.be/zmrPY6S1FwY
captured_at: 2026-06-05
author: "AI Impact"
contributor: "ชิดชนก"
platform: youtube
---
# I Turned Karpathy's Second Brain Into an AI Operating System

youtube video by **AI Impact**, 13m58s, uploaded 2026-06-04. URL: https://youtu.be/zmrPY6S1FwY
Tags: I Turned Karpathy's Second Brain Into an AI Operating System, second brain, Karpathy second brain, Andrej Karpathy, Karpathy, Claude second brain, Claude Code, knowledge base, AI knowledge base, Obsidian, Obsidian second brain, Obsidian Claude, PKM, second brain tutorial, how to build a second brain, AI memory system, Claude memory, pkm ai, codex second brain, codex obsidian, claude obsidian, ai i

## Shared in LINE Note+
- 2026-06-05 08:04 by ชิดชนก
- 2026-06-05 19:16 by ชิดชนก

## Description
I Turned Karpathy's Second Brain Into an AI Operating System

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Mats@aiimpact.me 

I improved Andrej Karpathy's famous second brain system, and rebuilt it from scratch as a knowledge base optimized for Claude. In this video, I'll walk you through the exact layout, structure, and setup that turns Claude into your personal AI research assistant with near-infinite memory and massively reduced token costs when used with Claude or Codex.

Most "second brain" setups are just note graveyards. They store information but they don't do anything. In this video I show you the exact system I built to fix that. An AI OS where your knowledge graph, your automations, and your AI agents all run as one connected machine. Your Obsidian vault becomes the memory, n8n becomes the nervous system, and Paperclip orchestrates the agents that actually get work done. 

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#karpathy #obsidian #claude #ai #secondbrain