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karpathy / min-char-rnn.py
Last active April 24, 2025 19:17
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)
import theano
import theano.tensor as T
import numpy as np
import cPickle
import random
import matplotlib.pyplot as plt
class RNN(object):
def __init__(self, nin, n_hidden, nout):