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LLM

K2-Horizon-0.9B

A compact open reasoning model with a 128K context window, designed for math, coding, science, and tool use.

Model details

Developed by
Institute of Foundation Models (IFM)
Model family
K2-Horizon
Size
0.9B
Input modalities
Text
Output modalities
Text
License
Apache 2.0

K2-Horizon-0.9B is a compact, fully open, decoder-only reasoning model in IFM’s K2-Horizon family. Despite its 0.9-billion-parameter size, it delivers strong performance across mathematics, coding, scientific reasoning, instruction following, and tool use, while supporting a 128K-token context window. The model was trained through multi-teacher distillation and is designed for efficient text generation, long-context tasks, and agentic applications.