Daily Ferry Log

This log is the canonical summary of completed daily ferry runs.

Sealing policy (for new runs): - seal each run with a pushed git tag that points to the commit containing the exact experiments/ferries/daily.py used for launch - use canonical daily seal tags in the format ferry/daily/YYYYMMDD/<run_slug> - keep detailed launch/debug narrative in the run issue - open a PR that updates only this file (docs/experiments/daily-ferry-log.md) - extract canonical metric keys with: - uv run python scripts/ferries/daily_analysis.py --run <wandb_run_url_or_path> --format markdown - if interesting, include optional analysis observations from the script output comparing this run against recent completed daily ferries

Runs

2026-02-20 (completed 2026-02-21)

• Issue #2940
• Summary: Inaugural daily 125M ferry run.
• Run ferry_daily_125m_20260220-202930-daily-ferry-vmem50m-fusedargmax-5bbb39
• Experiment Script experiments/ferries/daily.py
• Data browser daily-da79b9
• Seal tag: N/A (pre-sealing policy)
• Metrics:
• eval/paloma/c4_en/bpb: 1.12509
• eval/bpb: 1.17049
• eval/uncheatable_eval/bpb: 1.13019
• Notes: Initial TPU vmem failures were mitigated; the final run reached SUCCEEDED with eval harness completion.