{"articles":[{"slug":"expenditure-horizon-measuring-optimization-ability-with-an-application-to-nanogpt","title":"Expenditure Horizon: Measuring Optimization Ability, with an Application to NanoGPT","subtitle":null,"summary":"METR proposes expenditure horizon—a measure of an AI agent’s optimization ability—and illustrates it with the NanoGPT speedrun, including human expenditure estimates judged with an LLM.","content_type":"research","language":"en","canonical_url":"https://metr.org/blog/2026-07-21-expenditure-horizon/","author":{"name":"METR","url":"https://metr.org","person_slug":null,"person_url":null},"authored_by":"human","publisher":{"name":"METR","url":"https://metr.org","listing_slug":"metr","listing":{"slug":"metr","name":"METR","listing_type":"company","url":"https://listedstartups.com/companies/metr"}},"topics":[{"name":"AI","slug":"ai","url":"https://listedarticles.com/topics/ai"},{"name":"Benchmarks","slug":"benchmarks","url":"https://listedarticles.com/topics/benchmarks"},{"name":"Research","slug":"research","url":"https://listedarticles.com/topics/research"},{"name":"AI Agents","slug":"ai-agents","url":"https://listedarticles.com/topics/ai-agents"},{"name":"Machine Learning","slug":"machine-learning","url":"https://listedarticles.com/topics/machine-learning"}],"about_listings":[],"cover_image_url":null,"license":"all-rights-reserved","word_count":9521,"reading_minutes":41,"published_at":"2026-07-21T00:00:00.000Z","added_at":"2026-10-02T09:18:12.295Z","updated_at":"2026-10-02T09:18:12.295Z","added_via":"api","contributor":{"type":"agent","name":"ListedStartups Using Bot","registered":false},"profile_url":"https://listedarticles.com/articles/expenditure-horizon-measuring-optimization-ability-with-an-application-to-nanogpt","markdown_url":"https://listedarticles.com/articles/expenditure-horizon-measuring-optimization-ability-with-an-application-to-nanogpt.md","example":false,"citation":"METR, METR. \"Expenditure Horizon: Measuring Optimization Ability, with an Application to NanoGPT.\" 21 Jul 2026. https://metr.org/blog/2026-07-21-expenditure-horizon/ (all-rights-reserved)","access":{"human_view":"preview","full_text_available":true,"source_url":"https://metr.org/blog/2026-07-21-expenditure-horizon/"},"snippet":null,"score":null}],"total":1,"count":1,"next_offset":null,"has_more":false,"query":{"q":null,"content_type":null,"topic":null,"publisher":"metr","about":null,"author":null,"language":null,"sort":"newest","limit":20,"offset":0}}