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You are probably overpaying for a model you do not need

Run one everyday task across cheap, mid, and premium models. Score every answer against a correct one. The quality barely moves. The bill moves 27x.

Launch week
$129/mo $10 first week

then $129/mo

Cancel anytime before the week ends.

What your week includes

  • Run your own task across every model, cheap to frontier
  • Real quality and cost, scored side by side
  • A clear winner: the cheapest model that still clears your bar
  • Full Pro access for the week
Agent
> "Extract the fields from this invoice. Which model is cheapest that still gets it right?"
> run_evaluation (invoice extraction, scored vs a correct answer, 6 models)
GPT-4o Mini: quality 99.4 | cost $0.00017
DeepSeek V4 Flash: quality 99.8 | cost $0.00028
GPT-4.1 Mini: quality 99.4 | cost $0.00046
Grok 4.3: quality 99.7 | cost $0.00109
GPT-5.1: quality 99.3 | cost $0.00269
GPT-4o: quality 99.4 | cost $0.00463
every model clears the bar | cheapest that passes: GPT-4o Mini, 27x less than GPT-4o

They all passed. The bill did not.

Same invoice, same correct answer, six models from the cheapest open model to a frontier flagship. Every quality score lands between 99.3 and 99.8. The cost runs from $0.00017 to $0.00463.

Quality score by model (invoice extraction)

You set the bar, not us

The winner is not the top score. It is the cheapest model that still clears the quality line you care about. On a task this clean, that is the cheapest model on the list.

Cost per extraction by model

One run tells you where the money is going

You see quality and cost in the same view, scored against a correct answer, so the choice is a number and not a hunch. Paying 27x more buys nothing here.

Insight: A higher price is not a higher score. The frontier model and the cheapest model returned the same extraction. The only difference that showed up was the invoice from your provider.

Then run it everywhere you work

The same check runs from the dashboard, through the REST API in your pipeline, or inside your CI before a model change ships. Stop overpaying once, or stop overpaying everywhere.

What you get

  • Run your own task across every model, cheap to frontier
  • Quality scored against a correct answer, next to real cost
  • The cheapest model that clears your bar, named

How it works

  • Paste your task and a correct answer, pick your models
  • Every model runs and is scored by the same judge
  • Reusable from the dashboard, the REST API, or your CI

Example run shown above: real invoice extraction across 6 models, captured 2026-10-14, scored against a correct answer.

$129/mo $10 for your first week

Then $129/mo. Cancel anytime during the trial.

The run above is a real LLM Prover evaluation of six models on one invoice extraction task, scored against a supplied correct answer on 2026-10-14. Scores and costs are the values returned by that run. Your own tasks will score differently; run them to see your numbers.