{ "step": 8800, "validation_loss": 3.5113978534121983, "validation_perplexity": 33.49505625329089, "validation_num_batches": 128, "elapsed_sec": 6539.289077997208, "checkpoint_path": "/mnt/apps/llm-nanochat/checkpoints/20260622_resume-gpt2small-gpt2preln-k20-wsds800-final2e5-webwiki-step8000-dense50/step_8800.pt" }