'On Thursday, Ai2, the nonprofit AI research institute, released Olmo 2 1B, a 1-billion-parameter model that Ai2 claims beats similarly-sized models from Google, Meta, and Alibaba on several benchmarks. Parameters, sometimes referred to as weights, are the internal components of a model that guide its behavior.

Olmo 2 1B is available under a permissive Apache 2.0 license on the AI dev platform Hugging Face. Unlike most models, Olmo 2 1B can be replicated from scratch; Ai2 has provided the code and data sets (Olmo-mix-1124, Dolmino-mix-1124) used to develop it.