output/eval_results.json

{
    "epoch": 3.0,
    "eval_loss": 2.6957201957702637,
    "eval_runtime": 73.5868,
    "eval_samples": 239,
    "eval_samples_per_second": 3.248,
    "eval_steps_per_second": 3.248,
    "perplexity": 14.816185465869992
}