Aleph Alpha open-sources Kolibri: 78B params, 3.46B active, 1M context, Apache 2.0

josh_wills · x · 2026-10-04

Aleph Alpha released Kolibri, a European-built model with 78B total parameters but only 3.46B active, up to 1M-token context, with weights open under Apache 2.0. Its report also details pretraining data classifiers: a frozen Luxical model surprisingly outperformed fasttext despite their similar architectures.

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