@misc{expenditure-horizon,
  title = {Expenditure Horizon: Measuring Optimization Ability, with an Application to NanoGPT},
  url = {https://metr.org/blog/2026-07-21-expenditure-horizon/},
  year = {2026},
  date = {2026-07-21},
  version = {Source capture 2026-10-25},
  note = {Source capture 2026-10-25}
}

@misc{expenditure-horizon-nuwa,
  title = {Expenditure Horizon: Measuring Optimization Ability, with an Application to NanoGPT — NUWA research record},
  url = {https://whitzard.tech/en/nuwa/whitzard-index/work/expenditure-horizon/},
  version = {2026-10-29.1},
  organization = {NUWA Frontier AI Safety Lab},
  howpublished = {Retained note edition: https://whitzard.tech/nuwa/whitzard-index/data/record-editions/2026-10-29.1--expenditure-horizon.json},
  note = {NUWA research note. Source-reading scope and independent review status are stated on the record. Snapshot 2026-10-29.1. Retained note edition: https://whitzard.tech/nuwa/whitzard-index/data/record-editions/2026-10-29.1--expenditure-horizon.json.}
}