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Aleph Alpha releases Kolibri, open weights for German-English business AI

Kolibri 1 is a German-English reasoning and tool-use model released with Apache 2.0 weights. Aleph Alpha positions it for sovereign and industrial deployments. Its 78.1-billion-parameter mixture-of-experts architecture activates about 3.46 billion parameters per token, but serving it still requires substantial GPU infrastructure; this is not a small laptop model.

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Aleph Alpha · October 3, 2026

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