Aleph Alpha Releases Kolibri: A 78.1B Open-Weight English-German MoE Model With Only 3.46B Active Parameters

Aleph Alpha has released Kolibri, an open-weight German-English Mixture-of-Experts model with 78.1B total parameters, 3.46B active per token, and up to 1,048,576 tokens of context. Weights ship under Apache 2.0 on Hugging Face and run on a single B200 or H200 via vLLM. Aleph Alpha reports top overall scores among 12 MoE models compared, targeting sovereign deployment in regulated sectors.