Aleph Alpha Releases Kolibri, a Sovereign German-English Open-Weight AI Model for Government and Industry

Aleph Alpha releases Kolibri, a sovereign German-English open-weight AI model for mission-critical government and industry use, combining 78 billion total parameters with roughly 3 billion active per token and training data screened against a 4.5-million-URL blocklist.

• Aleph Alpha releases Kolibri, a German- and English-language sovereign open-weight LLM for mission-critical public-administration and industrial use, available since 3 October 2026.
• Kolibri uses a mixture-of-experts architecture with 78 billion total parameters but about 3 billion active per token, and 23% of its pre-training text is German.
• Aleph Alpha screens all training data against a blocklist of more than 4.5 million URLs and assesses third-party datasets for licensing, lawful sourcing and opt-out compliance.