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Aleph Alpha Kolibri is a 78.84 GB open-weight model, and its own documents disagree on German data

Aleph Alpha released Kolibri, a German and English model with 78.1 billion parameters, on October 3, 2026. We have not run it, and the company's documents disagree on training tokens and German data share.

5 October 2026. 8 min read