Ai2 releases Bolmo-1B-Stage1, a byte-level version of OLMo 2 1B

Ai2 has released Bolmo-1B-Stage1, a 1B-parameter byte-level language model retrofitted from OLMo 2 1B to process bytes rather than tokens. This checkpoint includes Stage 1 training only, with inner model parameters unchanged, and is available on Hugging Face under an Apache 2.0 license for research and educational use.