ANTHROPIC LEAKED A $3.4M FILE THAT BUILDS AN AI BUSINESS AIMED AT $120K A MONTH IN 60 MINUTES AND COSTS $1.55 A DAY
team of 5 costs $12,000 a month - this file costs $1.55 a day and never asks for a standup.
the whole thing runs on one rule: the cheap model triages, the middle one builds, the expensive one decides.
Opus 5 runs exactly once a day and is 13% of the bill - the priciest model is the smallest line on it.
Sonnet 5 carries 3 parallel branches, and together with the hunt that's 81% of the entire bill.
Haiku 4.5 reads 60 signals for pennies and hands back 12 letters - the block that used to eat your evenings now runs while you sleep.
swap the models around and you get 5x overpaid, or a month of selling to nobody.
the landing page, payment link, auto-replies and analytics get assembled at once in 12 minutes.
5 dashboards collapse into 3 numbers and one decision - and those numbers get written back into the root.
$120K a month is either 400 customers at $300 or 1000 at $120 - and the price decides which of the two machines you built.
the hour produces the machine, not the customers - it hunts just as hard even when nobody wants the product.
save this and paste it into Claude Code - route by the cost of being wrong, not the price per token ↓
I still don't understand why everyone is not using this yet. Thanks to it, a year ago I increased my income to 17,000 dollars a month
Andrey Karpathy, co-founder of OpenAI, published a simple idea that got 16 million views: stop using AI to write code, use it to build a second brain
You point Claude Code to a folder, drop any source in there (an article, transcript, PDF) and Claude reads it, links it, and saves it into a living wiki of everything you know. It compounds like interest: the more you feed it, the smarter it gets
Here is the gist:
Install Obsidian, create a vault, open it in Claude Code
Paste the file with Karpathy's wiki idea and tell Claude to build it
Claude creates three folders: raw for sources, wiki for its pages, CLAUDE
which runs everything
Drop any source into raw and say "ingest this"
Ask questions across everything, forever
Five minutes to set up, and you never start with an empty chat again
The full step-by-step guide is in the article. Save to bookmarks