Bayesian Financial Modeling

Stop Guessing.
Start Modeling.

Financial tools for founders who want probability ranges, not false precision. Monte Carlo simulations, Bayesian inference, and quantified uncertainty.

14-day free trial. No credit card required.

Spreadsheets Give You False Confidence

Single-point estimates create an illusion of precision. Reality is uncertain.

False Precision

Your spreadsheet says 16.2 months of runway. Reality? Somewhere between 12 and 20. That precision is a lie.

Static Assumptions

Hiring always takes longer. Revenue misses projections. Surprises happen. Static models ignore all of this.

No Risk Quantification

"What's the probability we run out before closing our round?" Spreadsheets can't answer this. We can.

Financial Modeling Tools for Founders

Each tool uses Bayesian inference and Monte Carlo simulation to give you probability ranges.

RunwayModeler

Burn Rate Simulator

Know your runway with probability ranges, not a single misleading number.

  • 1,000 Monte Carlo simulations
  • Natural language scenario input
  • Sensitivity analysis
  • Fundraising timing recommendations
Starting at $79/mo
Try Free

TermSheetSim

Term Sheet Comparison

Compare competing term sheets with quantified outcome distributions.

  • 10,000+ exit simulations
  • Side-by-side offer comparison
  • AI-powered PDF extraction
  • Negotiation leverage insights
Starting at $99/mo
Try Free

EquityModeler

Cap Table Simulator

Model dilution scenarios with uncertainty quantification built in.

  • Probabilistic dilution ranges
  • SAFE & convertible note modeling
  • Side-by-side scenario comparison
  • Exit outcome distributions
Starting at $99/mo
Try Free

HireModeler

Headcount Simulator

"One senior or two juniors?" Get probabilistic answers, not guesses.

  • 5,000 hiring simulations
  • Ramp time & churn modeling
  • Cost-per-output analysis
  • Management overhead calculation
Starting at $199/mo
Try Free

Why Probabilistic Modeling?

Traditional financial models give you a single number. But the future isn't certain. Our tools use the same Bayesian methods that actuaries and quants use to model uncertainty.

  • Ranges, not false precision - Know you'll run out in 11-18 months, not "14.3 months"
  • Risk quantification - "25% chance of running out before Series A closes"
  • Sensitivity analysis - Know which assumptions matter most
  • Better decisions - Make choices with quantified confidence

Spreadsheet

16.2 mo
Single estimate

Portrait Labs

11-18 mo
90% confidence range

The difference between false confidence and informed decision-making.

10K+
Simulations per analysis
4
Financial modeling tools
100%
Bayesian inference

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Portrait Labs

We build quantitative tools for startup founders. Our financial modeling products use Bayesian inference and Monte Carlo simulation to replace false precision with honest uncertainty quantification. Because the best decisions come from understanding what you don't know.