We are proud to present a full fleet of LLMs, radically open sourced. This is a fleet of 6 model sizes you can choose, with all model training details, code, data recipe, intermediate checkpoints. If you are interested in deployable agentic models, or curious about how models
Introducing K2 Horizon: a connected fleet of six foundation models ranging from 0.9 billion to 375 billion parameters.
- Frontier performance: Across coding and agentic tasks, K2 Horizon delivers top-tier performance in every size class—with the 0.9B, 3.7B and 7B models setting




