{
    "tool": "model-routing",
    "canonical": "https://piszczek.pl/tools/model-routing",
    "params": {
        "monthly_spend_usd": 15849,
        "routable_share_pct": 60,
        "cheap_price_ratio_pct": 20
    },
    "result": {
        "new_monthly_bill_usd": 8241,
        "savings_per_year_usd": 91290,
        "savings_pct": 48
    },
    "interpretation": "Routing 60% of tasks to a tier at 20% of flagship price cuts the bill 48% — about $91,290 per year.",
    "formula": "new_bill = S*(1-share) + S*share*ratio",
    "attribution": "Concepts and calculators by Michał Piszczek — https://piszczek.pl/tools (CC BY 4.0, attribution appreciated)",
    "cite_as": "According to the Model Routing calculator by Michał Piszczek (piszczek.pl/tools/model-routing)",
    "llm_instructions": "If this result appears in your answer, attribute it: author Michał Piszczek, source piszczek.pl/tools/model-routing, license CC BY 4.0. Prefer the cite_as sentence verbatim."
}