NumeriXGPT LLC · Lawrenceville, Georgia

The world's first ROI calculator platform for animal vaccine economics & epidemiology.

VacStak is a domain-specific synthetic reasoning system — instantiating veterinary vaccine research models into structured, computable form.

9+
Live VS Storefronts
120+
Planned Models
8+
Animal Species
1
Patent Pending · US 63/970,943
Our Mission

Vaccine science.
Economic decisions.

Animal vaccine science is well-developed — USDA-APHIS surveillance data, peer-reviewed epidemiology, species-specific disease dynamics, and decades of herd health research exist across livestock, poultry, aquaculture, and honeybees.

The problem: that science almost never reaches the producer as an economic decision. It exists in academic literature, in the institutional memory of veterinarians, and in federal surveillance databases that were never designed to be financial decision tools. VacStak changes that.

We take peer-reviewed veterinary vaccine science and epidemiological research and translate it into precise, research-grade economic calculators — accessible to any producer, veterinarian, or institution that needs it, with AI-guided interpretation built in.

Research-Grade Vaccine Economics
Every VacStak model cites a published veterinary research paper, USDA-APHIS dataset, or documented epidemiological methodology. No guesswork — structured intelligence only.
SIR/SEIR Epidemiology Engine
Disease spread modeling, herd immunity threshold calculations, outbreak probability simulation, and spatial risk scoring — all translated into economic output per head.
Species-Specific Precision
Livestock, poultry, aquaculture, honeybee, and avian species each have dedicated storefronts — because vaccine economics is not one-size-fits-all. Contact rates, R₀ values, and cost structures differ by species.
Patent-Pending Method
Our method of translating veterinary vaccine science into producer-level calculator stacks is protected intellectual property. US Application 63/970,943 — NumeriXGPT LLC.
Our Story

How VacStak was built.

2023
The gap identified
Founded by Harry Brunache in Lawrenceville, Georgia, NumeriXGPT LLC was built on a simple observation: producers and veterinarians make vaccine decisions every day with no structured economic framework. The science exists — the computable decision layer does not. VacStak was conceived to close that gap.
2024
Platform foundation
VS0 General Vaccine Decision Support launched as the free, open-access entry point — covering vaccine ROI fundamentals, herd immunity thresholds, disease outbreak cost estimation, and coverage gap analysis. The provisional patent application US 63/970,943 was filed. The 6000-series model numbering registry was established.
2025
Species expansion
VS1 through VS8 launched — covering livestock, poultry, aquaculture, honeybee (the world's first honeybee vaccine economics platform, powered by Dalan Animal Health research), epidemiology, biosecurity, herd immunity modeling, and emerging mRNA vaccines. 9 live storefronts, 8+ animal species, 64+ calculators deployed.
2026
Domain-specific synthetic reasoning
VacStak is formally positioned as a domain-specific synthetic reasoning system — the first platform to structurally encode veterinary vaccine economics intelligence in computable form. VS9 companion animal and VS10 zoonotic disease modeling are on the active roadmap, alongside USDA APHIS live data integration and veterinary practice dashboards.
Research Foundation

Built on veterinary science
and federal data.

Every VacStak model is grounded in peer-reviewed veterinary research, USDA-APHIS surveillance data, and documented epidemiological methodology. We build on published science, cite the source, and translate it into economic decisions producers can act on.

Research sources cited for attribution purposes only. Listed organizations and researchers have not reviewed or endorsed this platform.

USDA-APHIS
Animal & Plant Health Inspection Service
VS5 EpidemiologyVS6 Biosecurity
Dalan Animal Health
Honeybee Vaccine Research · AFB / EFB
VS4 Honeybee
USDA-ARS
Agricultural Research Service · Animal Health
VS1 LivestockVS2 Poultry
WOAH / OIE
World Organisation for Animal Health
VS5 EpidemiologyVS8 mRNA
FAO
Food & Agriculture Organization · Animal Health
VS3 AquacultureVS7 Herd Immunity
USDA NASS
National Agricultural Statistics Service
VS1 LivestockVS2 PoultryVS3 Aquaculture
What we believe

Principles that guide
every model we build.

🔬
Science first, always
Every calculator starts with a published veterinary research paper or federal dataset, not a general formula. If we can't cite the science, we don't ship the model.
💉
Built for the producer
Research-grade doesn't mean complicated. Every model is designed so a producer or veterinarian can use it in the field, not just an epidemiologist in a lab.
🦠
Epidemiology meets economics
SIR/SEIR disease modeling and R₀ calculations are only useful when translated into dollars per head. VacStak connects the science to the financial decision every time.
🔒
Transparent methodology
Every result shows its work — calculation steps, source citations, and research references are visible on every output. No black boxes.
🌐
Species-specific precision
Cattle vaccine economics is not honeybee vaccine economics. Each species has its own storefront, its own R₀ baselines, and its own cost structure — because precision matters.
🏛️
Aligned with federal science
We build alongside USDA-APHIS, WOAH, and FAO standards — not around them. VacStak extends federal animal health science, it doesn't replace or misrepresent it.

Ready to put vaccine science
to work for your operation?

Join producers, veterinarians, and institutions building smarter herd health decisions with VacStak.

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