{"id":"clm_E6A4DACAB859","entity":"ai21-labs","predicate":"model_release","value":"Jamba","value_json":{"feed":"ai21-blog","item":"https://www.ai21.com/blog/announcing-jamba/","tags":{"v":2,"ai":true,"by":"claude-haiku-5-5","on":"2026-11-10","themes":["reasoning"],"model_tier":"frontier","release_kind":"model"},"check":{"on":"2026-11-10","url":"https://www.ai21.com/blog/announcing-jamba/","pages":1,"quote":"We are thrilled to announce Jamba, the world’s first production-grade Mamba based model.","outcome":"checked"},"evidence":"Debuting the first production-grade Mamba-based model delivering best-in-class quality and performance.","extracted_by":"claude-haiku-5-5","primary_source":true},"valid_from":"2024-03-28","valid_to":null,"published":"2024-03-28","recorded":"2026-11-10","citation":{"plain":"AsOf. \"AI21 Labs model release: Jamba\", as of 2024-03-28. Claim clm_E6A4DACAB859, https://asof.is/claim/clm_E6A4DACAB859, accessed 2026-11-11. Source: https://www.ai21.com/blog/announcing-jamba/.","url":"https://asof.is/claim/clm_E6A4DACAB859","accessed":"2026-11-11"},"confidence":0.7,"status":"valid","assertable":true,"superseded_by":null,"supersedes":[],"first_seen_at":"2026-11-10T10:03:27.125224+00:00","updated_at":"2026-11-10T13:30:45.076368+00:00","sources":[{"url":"https://www.ai21.com/blog/announcing-jamba/","tier":"primary","publisher":"AI21 Labs","published_at":"2024-03-28T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-10","quote":"We are thrilled to announce Jamba, the world’s first production-grade Mamba based model.","url":"https://www.ai21.com/blog/announcing-jamba/","excerpt":"Debuting the first production-grade Mamba-based model delivering best-in-class quality and performance."},"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.","citation":"citation: how to cite the row (plain: one sentence with the value, its as-of date, the claim id and URL, the day answered and the primary source; url: the claim page; accessed: the day answered). APA and BibTeX forms are on the claim page.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}