{"id":"clm_464B073620B1","entity":"hugging-face","predicate":"released","value":"Open-R1","value_json":{"feed":"huggingface-blog","item":"https://huggingface.co/blog/open-r1","tags":{"v":2,"ai":true,"by":"claude-haiku-5-5","on":"2026-11-03","themes":["open_weights","reasoning"],"release_kind":"research"},"check":{"on":"2026-11-03","url":"https://huggingface.co/blog/open-r1","pages":1,"quote":"These questions prompted us to launch the Open-R1 project , an initiative to systematically reconstruct DeepSeek-R1’s data and training pipeline, validate its claims, and push the boundaries of open reasoning models.","outcome":"checked"},"evidence":"Open-R1: a fully open reproduction of DeepSeek-R1","extracted_by":"claude-haiku-5-5","primary_source":false},"valid_from":"2025-01-28","valid_to":null,"published":"2025-01-28","recorded":"2026-11-03","confidence":0.7,"status":"valid","assertable":true,"superseded_by":null,"supersedes":[],"first_seen_at":"2026-11-03T00:59:32.580487+00:00","updated_at":"2026-11-03T01:18:08.110184+00:00","sources":[{"url":"https://huggingface.co/blog/open-r1","tier":"primary","publisher":"Hugging Face","published_at":"2025-01-28T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-03","quote":"These questions prompted us to launch the Open-R1 project , an initiative to systematically reconstruct DeepSeek-R1’s data and training pipeline, validate its claims, and push the boundaries of open reasoning models.","url":"https://huggingface.co/blog/open-r1","excerpt":"Open-R1: a fully open reproduction of DeepSeek-R1"},"legend":{"dates":"valid_from: when the claim took effect (a period figure: the day its period closed). published: the earliest day a source on the record published it (a filing's filing date, a post's date; null when no source carries one). recorded: the day AsOf first held it. A figure can take effect weeks before it is published.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}