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Multi-Model Router Cost Optimizer

Route easy/medium/hard queries to cheapest model

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Learn more — how it works, FAQ & guide
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Multi-Model LLM Routing Cost Optimizer

Production LLM apps that route easy queries to cheap models (Haiku, Gemini Flash, GPT-4o-mini) and reserve premium models for hard queries cut cost by 60–85%. This tool shows the math.

How to use this tool

  1. 1

    Estimate query mix

    What % of queries are simple, medium, complex?

  2. 2

    Pick a cheap + premium model

    e.g. Haiku for easy, Opus for hard.

  3. 3

    Compare

    See savings vs always using the premium model.

Frequently Asked Questions

Why route at all?
A single premium model for everything wastes 60–80% of spend on simple queries that a 30× cheaper model handles equally well. Multi-model routing is the #1 cost lever for production LLM apps.
How do I classify a query?
A small classifier (one Haiku call, ~50 tokens) decides cheap vs premium. Or use rules: short input + factual → cheap; long input + reasoning → premium.
Doesn't routing add latency?
Yes — one extra round-trip for the classifier. ~300–500ms. Often worth it: a 70% cost cut beats 0.5s latency for most use cases.

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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.