gpt2-medium-pt/eval_results.json

{
    "epoch": 1.0,
    "eval_loss": 4.021326541900635,
    "eval_runtime": 8.2548,
    "eval_samples_per_second": 1.211,
    "eval_steps_per_second": 0.363,
    "perplexity": 55.77504470825612
}