kapynOpen Source

Introducing Olmo-core 3: Open, scalable training infrastructure for large MoEs

Olmo-core 3 is an open, scalable training infrastructure designed for large Mixture of Experts models. The release provides developers with transparent tooling for high-performance model training, lowering the barrier to building massive architectures. This codebase gives open-source AI teams production-grade foundations previously locked behind proprietary labs.

Hugging Face·Oct 1, 2026

Opening Kapyn…