Aleph Alpha releases Kolibri, an open-weight English-German AI model

Aleph Alpha released Kolibri on October 3, 2026, with downloadable weights under the Apache 2.0 license. The company says the model is designed for regulated work and can run on customers’ own infrastructure. Its model card lists a native context of 262,144 tokens, validated up to 1,048,576, and notes that all 78 billion parameters must be held in memory even though only 3.46 billion are active per token.