Stop Guessing Which AI Router Is Cheapest

For AI engineers and product managers choosing an LLM routing service for production. Enter your real token usage, per-1K prices, latency, and quality scores, then tune cost, latency, and quality weights to get one comparable score per routing plan — so your model router decision is based on numbers, not vendor claims.

Results update live as you type — no button needed. The Example button fills a sample input.

Why use AI Model Routing Cost Calculator?

Compare multiple routing plans side by side using your actual input and output token volumes

Convert cost, latency, and quality into a single weighted score you control

See daily and monthly cost estimates based on requests per day

Adjust weights to match your workload: cost-sensitive, latency-sensitive, or quality-sensitive

No signup, no data leaves your browser — instant results

FAQ

How is the weighted score calculated?

Each plan is normalized against the best and worst values in your set for cost, latency, and quality. The normalized values are multiplied by your weights and summed into a single score, so the highest score is the best fit for your priorities.

What token usage should I enter?

Use your real average input and output tokens per request, plus requests per day. The calculator multiplies these by each plan's per-1K prices to estimate daily and monthly cost.

Can I compare more than three routing services?

Yes. Add as many objects to the routing_plans array as you need. The calculator will score and rank all of them.

Does quality score come from the vendor?

You provide the quality_score for each plan. Use benchmark results, internal evals, or vendor-published numbers — the calculator only compares what you give it.

Example input

Try it with this sample — paste it into the box above:

250 * 12%

How to use AI Model Routing Cost Calculator

  1. Enter or paste your data into the Expression box above.
  2. The result appears instantly in the Result box — everything runs in your browser, nothing is uploaded.
  3. Use Copy or Download to keep the result, or Example to load a sample first.

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