Skip to content

Instantly share code, notes, and snippets.

@karpathy
karpathy / min-char-rnn.py
Last active October 13, 2025 15:32
Minimal character-level language model with a Vanilla Recurrent Neural Network, in Python/numpy
"""
Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
BSD License
"""
import numpy as np
# data I/O
data = open('input.txt', 'r').read() # should be simple plain text file
chars = list(set(data))
data_size, vocab_size = len(data), len(chars)
@Miserlou
Miserlou / gist:11500b2345d3fe850c92
Created April 27, 2015 21:20
1000 Largest US Cities By Population
Largest 1000 Cities in America
2013 popuation data - Biggest US Cities By Population
rank,city,state,population,2000-2013 growth
1,New York,New York,8405837,4.8%
2,Los Angeles,California,3884307,4.8%
3,Chicago,Illinois,2718782,-6.1%
4,Houston,Texas,2195914,11.0%
5,Philadelphia,Pennsylvania,1553165,2.6%