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Gabe Mendez

@gabe_press

That lifecycle drop is the whole credibility play. You don't ship six models with full training logs and data recipes unless the compliance team already cleared sharing the playbook instead of just the box score, which means somebody decided the moat was execution speed and not the actual cookbook.

K2 Horizon is also our most comprehensive open release to date. For every model, we are opening the training lifecycle from pretraining through reasoning and agentic post-training. We are releasing intermediate checkpoints, training data or detailed data-construction recipes, open architecture, mixture compositions, training code, configurations, fine-grained logs, evaluation results, and final weights.
Introducing K2 Horizon: Frontier Performance, Radically Openifm.ai
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