Kolibri Kolibri is Aleph Alpha’s sovereign open-weight Mixture-of-Experts language model with 78.1 billion total parameters and 3.46 billion active per token. Bilingual in German and English, it supports up to 1 million tokens of context, four controllable reasoning modes, tool calling, and on-premises deployment. Released under Apache 2.0, it is specialized for mission-critical government, industrial and aerospace workloads with strong results on German public-sector, manufacturing and long-context evaluations. Full weights are available on Hugging Face.