config.json

{
  "architectures": [
    "GPT2LMHeadModel"
  ],
  "model_type": "gpt2",
  "vocab_size": 50257,
  "hidden_size": 768,
  "num_attention_heads": 12,
  "num_hidden_layers": 12,
  "pad_token_id": 50256,
  "eos_token_id": 50256
}