A long diagonal row of supercomputer cabinets with gold-mesh doors at NASA Ames Research Center
ARQS AI Cost Router · v1.0 · free browser tool

The right model
for every task.

List your AI workloads and your own price table. The router sends each task to the cheapest model that still meets its quality, latency, data and context rules — then shows what you save against running everything on your top model. No API keys, nothing leaves this browser.

4routing rules
2what-if levers
3export formats
Pay for quality only where it counts

Cheapest eligible model, task by task.

Describe each task — classify, summarize, extract, draft, code or reasoning — with monthly requests, average input and output tokens, the quality it needs, how fast it must answer and how sensitive its data is. Enter the models you can use with their per-million-token rates. The router applies four rules, picks the cheapest model that passes all of them, and explains every choice.

Looking down the aisle of a robotic tape library, thousands of cartridges stacked floor to ceiling
Practice on fiction

Sample: a support + ops workload.

A fictional outfitter's six tasks and five generically named models with clearly labelled example rates — so the routing, savings and exports work before you enter your own provider pricing.

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Four routing rules

Quality tier at or above the need; a model fast enough for real-time or interactive work; cleared by your policy for the task's data; and a context window that fits.

%

Savings and what-ifs

Routed monthly cost against everything on the top model, plus cache-hit and batch-discount sliders and a budget cap that warns before you overspend.

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Policy, CSV, route config

Export a Markdown routing policy, a formula-safe CSV of routes and costs, and a JSON route config your engineers can wire into a gateway.

The tool

AI cost router

A labelled fictional sample with example rates is loaded. Edit the workload and price table to match your own. Saved in this browser only.

TaskNeedsRouted modelPer 1k reqMonthlyTop modelWhy

Spend by model

Against the top model

What this is, and isn't. A free routing and cost planner that stays in your browser. It never calls a model, never asks for keys and never presents its example rates as anyone's real prices. For channel spend and returns see Growth Intelligence, for cloud posture CloudGuard, for release gates LaunchRail, for testing a cheaper model against the current one ExperimentLab, and for the broader lab ARQS Software.