KOS Engine -- open-source neurosymbolic engine where the LLM is just a thin I/O shell (swap in any local model, runs on CPU)

Built an open-source knowledge engine where the LLM does zero reasoning. All inference runs through a deterministic spreading activation graph on CPU. The LLM only reads 1-2 pre-scored sentences at the end, so you can swap gpt-4o-mini for Mistral, Phi, Llama, or literally anything that can complete