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karpathy / microgpt.py
Last active February 15, 2026 02:29
microgpt
"""
The most atomic way to train and inference a GPT in pure, dependency-free Python.
This file is the complete algorithm.
Everything else is just efficiency.
@karpathy
"""
import os # os.path.exists
import math # math.log, math.exp
require 'net/http'
require 'rack'
# todo
# - detect ssl
# - keepalive?
module Rack
class Forwarder
def initialize(host, port=80)