
Eka is a four-persona AI system (founder / chanakya / gita / reflection) built on synthetic datasets, served through a FastAPI backend.
Four supervised models trained and published on Hugging Face: a sentiment classifier, a summarizer, a complexity router, and a LightGBM ranker.
The fine-tuning chapter closed honestly rather than being padded out: personas ship as system prompts against Qwen2.5-7B-Instruct via Groq, since prompting already matched the fine-tune's measured ceiling.