[2512.13961] Olmo 3

Abstract:We introduce Olmo 3, a family of state-of-the-art, fully-open language models at the 7B and 32B parameter scales. Olmo 3 model construction targets long-context reasoning, function calling, coding, instruction following, general chat, and knowledge recall. This release includes the entire model flow, i.e., the full lifecycle of the family of models, including every stage, checkpoint, data point, and dependency used to build it. Our flagship model, Olmo 3 Think 32B, is the strongest fully-open thinking model released to-date.

Olmo 3 Olmo Team Allyson Ettinger 1 Amanda Bertsch 1, 3 Bailey Kuehl 1 David Graham 1 David Heineman 1 Dirk Groeneveld 1 Faeze Brahman 1 Finbarr Timbers 1 Hamish Ivison 1, 2 Jacob Morrison 1, 2 Jake Poznanski 1 Kyle Lo 1, 2 Luca Soldaini 1 Matt Jordan 1 Mayee Chen 1, 4 Michael Noukhovitch 1, 5, 6 Nathan Lambert 1 Pete Walsh 1 Pradeep Dasigi 1 Robert…

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