ProFormaEngine

The financial modeling engine for Claude and ChatGPT.

Describe your model, explore results, run scenarios, output to Excel.

Add to Claude Request access

ProFormaEngine is invite-only for now. Request access and we'll let you in as room opens up.

ProFormaEngine is in beta. By requesting access or logging in, you agree to the Terms and Privacy policy.

  1. 1 Describe your model

    Build a water utility pro forma for 2026–2030. Water sales start at 7.75M and grow 1% a year. The rate starts at $1.55 and rises 2.75% a year. Fixed revenue is $1.5M, growing with rates. Opex is $9M, growing 3%.

  2. 2 Claude builds it

    Built Water Utility · Base Case: 8 line items, 2026–2030, every formula readable. Net revenue grows from $4.52M to $5.48M.

  3. 3 Analyze it in Claude

    Chart revenue and expenses indexed to 2026 = 100.

    Pulled the values from ProFormaEngine:

    Rev 115 Exp 113 20262030

    Revenue outpaces expenses: up 15.5% by 2030, against 12.6%.

4 Open it in the web viewer: trace every formula, export to Excel
The ProFormaEngine spreadsheet view: a water utility model by year, with a selected cell's formula and the cells it reads highlighted in matching colours.