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Numbersmith · Financial models

Model that ties to your real numbers.

Numbersmith pulls live Stripe and Mercury data. Builds runway, scenarios, A-round models. CFO speed, founder voice.

Start free100 free tokens. No card. Drafts only — confirm with your accountant.

Sunday-night spreadsheet math.

It's Sunday. You're updating the model your accountant built six months ago. Half the cell references are broken. You're typing Stripe numbers by hand because the integration keeps breaking. Burn looks wrong.
  • Excel models drift the moment the founder doesn't update them.
  • Real CFOs are $200/hr; fractional ones are $5,000/mo.
  • ChatGPT does the math but doesn't connect to your data.

Here’s what changes.

Numbersmith

Live numbers, real scenarios, defensible math.

Numbersmith pulls Stripe + Mercury data. Builds a 24-month operating model with three hiring scenarios. Computes runway from your current balance + monthly burn. Stress-tests the A-round pitch model under three growth scenarios. Financial disclaimer on every output.

  • 24-month operating model, three hiring scenarios.
  • Runway from real Mercury balance + monthly Stripe.
  • A-round pitch model with three growth paths.
  • Reconciles projected vs actual burn with explanation.
Pricing

Pay per run, not per month.

Token cost
200 tokens per full model run
Free tier
100 free tokens cover an initial scenario pass

A fractional CFO is $5,000/mo. Numbersmith is $2 per run. Use ours for the model; keep your CPA for tax filings.

All 10 agents available on free. Tokens are the gas, not the gate.

Run the runway before your next investor sync.

Series A-stage VCs ask for the operating model in week 1 of diligence. Best time to have it: before they ask.

100 free tokens. No card. Drafts only — confirm with your accountant.