IFM Open-Sources K2 Horizon: Six Fully Open Models from 0.9B to 375B

aya-ifm · reddit · 2026-10-02

• The Institute for Foundation Models (IFM) announced an r/LocalLLaMA AMA introducing K2 Horizon, a connected fleet of six fully open models ranging from 0.9B to 375B parameters.
• The release is unusually thorough: beyond weights, IFM open-sourced training data and recipes, training code, intermediate checkpoints, fine-grained training logs, and evals.
• Six researchers including Hector Liu, Alexander Moreno, and Mikhail Yurochkin will answer questions live on Oct 5, 8–10 PM PT, covering pre-training data mixes, post-training, on-device small models, MoVA, sparse attention, and deployment.

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