GPT-3-Encoder-Single

Javascript BPE Encoder Decoder for GPT-2 / GPT-3, is single file,brower testing and develop

    <script src="gpt3-encoder-single.js"></script>
    <script>
      encode('hello world') // encode result is `[31373,995]`
      decode([31373,995]) // decode result is `hello world`
    </script>

About

GPT-2 and GPT-3 use byte pair encoding to turn text into a series of integers to feed into the model. This is a javascript implementation of OpenAI's original python encoder/decoder which can be found here

Install with npm

npm install gpt-3-encoder

Usage

Compatible with Node >= 12

const {encode, decode} = require('gpt-3-encoder')

const str = 'This is an example sentence to try encoding out on!'
const encoded = encode(str)
console.log('Encoded this string looks like: ', encoded)

console.log('We can look at each token and what it represents')
for(let token of encoded){
  console.log({token, string: decode([token])})
}

const decoded = decode(encoded)
console.log('We can decode it back into:\n', decoded)