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OptiRoute AI

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

OptiRoute AI — Demo video

OptiRoute AI is an intelligent LLM routing engine that solves the cost problem of over-relying on frontier models. Most applications send every query to their most expensive model — even when a cheaper model could answer just as well. OptiRoute benchmarks 8 leading LLMs across 1,887 queries and 26 benchmark sources, then learns a lightweight pre-dispatch quality scorer that routes each query to the cheapest model clearing a defined quality floor. On a sealed 282-query test set, the research baseline achieved 84.04% accuracy (94.8% of GPT-5 quality) while cutting cost by 68.4%. The router runs entirely locally (no extra LLM call), adding ~11ms median overhead, and exposes a multi-objective mode for cost, latency, quality, and privacy trade-offs — with privacy enforced as a hard eligibility constraint. Backed by 130 automated tests that fail if frozen research results drift, the system turns "which LLM is best?" into "which LLM is best for this query, under my constraints?

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