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Abu Dhabi’s MBZUAI releases K2 Horizon, six models with weights and training data

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The Institute of Foundation Models at Mohamed bin Zayed University of Artificial Intelligence released K2 Horizon, six models from 0.9 billion to 375 billion parameters, with weights, code, training data and methods under the Apache 2.0 licence. MBZUAI called it the largest fully open model release so far.

Why it matters

Researchers can rebuild and audit a 375-billion-parameter model end to end, from a UAE state-backed university.

When
3 Sep 2026
ID
WTA-N-2026-0234
Who
MBZUAI; Eric Xing

Summary by wheresthe.ai, from MBZUAI and the reporting credited above. Checked against the source on 10 Oct 2026.

Source copy: download the page text as saved on 18 Oct 2026 (PDF). Also held by the Internet Archive.

Earlier in this Storyline: What led hereMBZUAI and G42 release K2 Think, a 32-billion-parameter open reasoning model

Cite this story

WTA-N-2026-0234: “Abu Dhabi’s MBZUAI releases K2 Horizon, six models with weights and training data.” wheresthe.ai, 3 Sep 2026. https://wheresthe.ai/d/ae-mbzuai-k2-horizon-open-2026-09/ (source: MBZUAI).

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