K2 Horizon

Model · 375B · 23B active · open weights · 1 item since Sep 2026

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Open releases add training data, recipes, and agent-ready vision

Items

Sep 3
IFM's fully open K2 Horizon fleet
MBZUAI's Institute of Foundation Models released six models from 0.9B to a 375B-A23B flagship (512K context) under Apache 2.0 with weights, code, training data or reproducible recipes, intermediate checkpoints, and logs, billed as the largest fully open-source release to date.