config.json

{
    "architectures": ["GPT2LMHeadModel"],
    "model_type": "gpt2",
    "n_ctx": 1024,
    "n_embd": 768,
    "n_head": 12,
    "n_layer": 12,
    "vocab_size": 50257,
    "activation_function": "gelu",
    "initializer_range": 0.02,
    "layer_norm_epsilon": 1e-5
}