checkpoints/status.json

{
  "phase": "pretrain",
  "step": 1351527,
  "seen_tok": 857451474,
  "target_tok": 35757521305,
  "progress_pct": 2.4,
  "loss": 14.4291,
  "loss_avg": 11.9176,
  "tok_per_sec": 1855.4,
  "eta_hours": 5224.88,
  "batch": 1,
  "block": 561,
  "timestamp": 1768327252.4860904,
  "updated": "2026-01-13 18:00:52 GMT"
}