Flour RoadStart a run

Proof that a cheaper model can run your prompt.

Paste your system prompt and your real cases. We replay every case through cheaper models and judge each answer against the model you run today. You get Match, Close or Miss on every case, the routing policy, and the code.

Run it on your promptpreview is free

3 cases minimum · no keys · no account · verdict by email

Support triage · 6 of 50 cases shownclaude-opus-4-1 → claude-haiku-4-5
  • case 01Match

    Refund request, order 4471

    champion$0.0182candidate$0.0009
  • case 02Match

    Password reset, locked twice

    champion$0.0164candidate$0.0008
  • case 03Close

    Duplicate charge, wants a call

    champion$0.0201candidate$0.0010
  • case 04Match

    Shipping delay, partial credit

    champion$0.0175candidate$0.0009
  • case 05Miss

    Chargeback threat, lawyer named

    champion$0.0233candidate$0.0012
  • case 06Match

    Wrong size, no receipt

    champion$0.0158candidate$0.0008
47 of 50 Match · 2 Close · 1 Miss$0.0186 → $0.0009 per case
An illustration of the table a run returns. Your run uses your prompt, your cases and your numbers.

What a run hands back

Verdict per case
Match, Close or Miss, with both answers side by side.
Share of traffic
The share the winning candidate can take safely.
Escalation rule
The condition that sends a case back to your champion.
Monthly saving
The dollar delta at your volume, rounded down.
Route function
Drop-in code for the gateway you already run.
Policy file
The routing policy as a file, ready to commit.
Price
$79 per run
Cases
50 per run
Preview
Free, by email within 1 day
Setup
None. No API keys, no account.
Kept
Permanently, at a URL you can share.

If no candidate can safely take 20% of your traffic, the run is refunded and you keep the report.

Two outcomes: a saving, or your money back

Bring your prompt

Run it on your promptpreview is free

Preview is free · a full run is $79