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Model Router
Paste a request — Jev rates its complexity and picks which model tier should handle it.
jev-router · open-source · LiteLLM proxygithub.com/prismhq/jev-router
jev-router is an open-source, OpenAI-compatible LLM router built on LiteLLM: clients send one model id ("jev-router") and Jev picks which model actually serves each request. A pre-call hook summarizes the messages, filters candidates by capability (image support, output length), and lets Jev choose — with a rules-based cheapest-eligible fallback when no key is set. It's the exact pattern below, in production: a compact typed decision, easy to threshold and audit, instead of embedding similarity or hand-tuned rules.
Paste the incoming request
real API · free · no signup
complexityrouteneeds_tools
Typed, calibrated answers appear here. Edit the input and hit Route request.
Need to run this over a whole spreadsheet? Use the Batch Analyzer — same questions, thousands of rows, exportable.