Iterate, validate and share financial models faster than any spreadsheet
NUMERUS is an AI-powered workspace for finance professionals designed to make you productive.
Numerus has transformed how I build and track my financial models daily. Multiple agents tackle my workspaces simultaneously, slashing build time by 50%. Can't imagine modeling without it. Setup was effortless!
— Yana, Fractional CFO
Agents turn ideas into models
Accelerate model crafting by handing off repetitive tasks to agents — like building LBOs from term sheet or balancing 3-statement while you focus on decision making.
NUMERUS
The Cursor for finance — a purpose-built IDE for financial modeling
NUMERUS is a purpose-built IDE for financial modeling. Where Cursor gave software engineers an AI-native coding environment, NUMERUS gives finance professionals an AI-native modeling environment — built from scratch around the .num DSL, not bolted onto Excel.
Four Pillars
IDE Experience
A familiar spreadsheet-like canvas with the power of a developer environment underneath. Syntax highlighting, formula intelligence, and error detection built into the editing experience. Designed for keyboard-first power users — FP&A analysts, CFOs, and finance teams.
.num DSL & File Format
A proprietary domain-specific language designed exclusively for financial modeling — the first of its kind. Native primitives for time periods, fiscal years, typed values, named scenarios, and explicit dependency graphs. Files are human-readable, text-based, and diffable.
Version Control & Collaboration
Git-style version control as a native feature, not a plugin. Full audit trail on every assumption change. Real-time collaboration enabled by the text-based .num format. No more emailing files or _FINAL_v2_USE_THIS.
AI Copilot
AI that understands financial model structure and business logic — not just formula syntax. Trained on the .num DSL: suggests, completes, audits, and explains. Can generate entire model sections from natural language prompts. Understands context across revenue models, cost models, and cap tables.
Frequently Asked Questions
- What is NUMERUS?
- NUMERUS is a purpose-built IDE for financial modeling — the Cursor for finance. It is built from scratch around the .num DSL, a proprietary domain-specific language designed exclusively for financial modeling. It combines a spreadsheet-like IDE, git-style version control, real-time collaboration, and an AI copilot that understands financial model structure.
- How is NUMERUS different from Excel or Google Sheets?
- Excel is a general-purpose grid. NUMERUS is a purpose-built financial modeling IDE with its own domain-specific language (.num), native version control, real-time collaboration, and an AI copilot that understands financial logic. Different category entirely.
- How does NUMERUS compare to Pigment, Mosaic, or other FP&A tools?
- Those are planning tools, not modeling environments. NUMERUS is an IDE built around a proprietary DSL with native primitives for financial modeling — time periods, fiscal years, typed values, scenarios, and dependency graphs. The architecture is fundamentally different.
- How does NUMERUS compare to Cursor?
- Cursor is the closest analogy in spirit — both are AI-native IDEs purpose-built for their domain. Cursor is for software engineering, NUMERUS is for financial modeling. Different domain, same philosophy.
- What is the .num file format?
- The .num format is a human-readable, text-based, diffable file format for financial models. It is powered by the NUMERUS DSL which has native primitives for time periods, fiscal years, typed values, named scenarios, and explicit dependency graphs.
- How do I get started?
- NUMERUS is in MVP stage. Join the waitlist on the website. Demo available on request from the founders directly. The team is looking for design partners and early adopters to co-build the product.
- Does it replace a CFO or finance team?
- NUMERUS is a financial modeling environment and co-pilot — not a replacement for experienced finance leadership. It gives you the IDE, version control, and AI assistance to build and iterate on models faster, especially before you can afford a full-time CFO.
- Is my data secure?
- Financial data is encrypted end-to-end, stored securely, and never shared with third parties. Industry best practices for data protection and compliance.