notebooks/head_view_gpt2.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from bertviz import head_view\n",
    "from transformers import GPT2Tokenizer, GPT2Model"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "model_version = 'gpt2'\n",
    "model = GPT2Model.from_pretrained(model_version, output_attentions=True)\n",
    "tokenizer = GPT2Tokenizer.from_pretrained(model_version)\n",
    "text = \"The quick brown fox jumps over the lazy dogs.\"\n",
    "inputs = tokenizer.encode_plus(text, return_tensors='pt', add_special_tokens=True)\n",
    "input_ids = inputs['input_ids']\n",
    "attention = model(input_ids)[-1]\n",
    "input_id_list = input_ids[0].tolist() # Batch index 0\n",
    "tokens = tokenizer.convert_ids_to_tokens(input_id_list)\n",
    "head_view(attention, tokens)"
   ]
  }
 ],
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