eval_results.json

{
    "epoch": 5.0,
    "eval_loss": 3.91530179977417,
    "eval_runtime": 167.6276,
    "eval_samples": 18156,
    "eval_samples_per_second": 108.312,
    "eval_steps_per_second": 13.542,
    "perplexity": 50.16420877359
}