AI21 Labs model releases

Release dates for every Jamba model AI21 Labs has shipped, newest first. The latest is Jamba Reasoning 3B, released 8 Oct 2025. Over the last 12 months AI21 Labs released 1 model.

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All models
October 20251 release
  1. 8 Oct
    Jamba Reasoning 3B6
July 20252 releases
  1. 7 Jul
    Jamba 1.7 Large6
    Jamba 1.7 Mini5
March 20252 releases
  1. 6 Mar
    Jamba 1.6 Large6
    Jamba 1.6 Mini5
August 20242 releases
  1. 22 Aug
    Jamba 1.5 Large6
    Jamba 1.5 Mini5

Release dates and intelligence scores from Artificial Analysis, cross-checked against vendor announcements. Follow new releases via RSS.

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