The Challenge

One model call becomes a system dependency.

Prompts, tools and parsing get written for one vendor. Months later, changing models means touching everything.

01

Costly switches

Prompts and formats are tied to one vendor.

02

One model for everything

Simple tasks use the same expensive model as hard ones.

03

Models doing math

Figures produced by a language model are hard to verify.

04

Varying data rules

Some data must stay in specific environments.

What You Get
Capabilities

We keep business logic separate from the model.

We define interfaces and tests for each task, then route work to approved models based on measured quality, speed, cost and policy.

LAYER

Layered design

Separate users, presentation, interfaces, business logic, data, models and infrastructure, with one job per layer.

Perfect for
  • Reference architecture
  • Layers
  • Interfaces
  • Ownership
ROUTE

Task-based routing

Send each task to the model that meets its bar, and keep calculations and rules in code.

Perfect for
  • Model routing
  • Cascades
  • Deterministic logic
  • Fallbacks
DECOUPLE

Portable interfaces

Keep provider-specific prompts and formats behind stable contracts so alternatives can be tested.

Perfect for
  • Adapters
  • Contracts
  • MCP
  • Prompt management
PROTECT

Data placement

Keep sensitive work, including data rooms, in approved environments with access controls.

Perfect for
  • Data residency
  • VDR
  • Access control
  • Encryption
PROVE

Model comparison

Test a replacement model on real tasks for accuracy, failures, speed and cost before switching.

Perfect for
  • Evals
  • Benchmarks
  • Canaries
  • Rollback

How It Works

01. Map

We find the models, tools, data and policies that are tightly coupled.

02. Separate

We define task contracts, routing rules and access boundaries.

03. Verify

We swap one workload in a controlled test and compare the results.

What you get!
Business Outcomes

You keep control of cost, data and vendors.

→

Tested comparisons

Models are judged on your tasks, not vendor claims.

→

Cost matched to difficulty

Expensive models handle only hard work.

→

Auditable numbers

Calculations run in code.

→

Easier migration

Models change behind stable interfaces.

→

Data rules honored

Work goes only to approved environments.

→

Early regression checks

Changes are tested before customers see them.

→

Contained failures

Fallbacks and review points limit damage.

→

Negotiating leverage

You always have a working alternative.

Case in Point

Private equity firm

Client engagement, anonymized

A large private equity firm wanted AI across its deal process without vendor lock-in, invented figures or risk to data room confidentiality. We designed an eight-layer architecture in which the model occupies one layer, business logic runs on MCP servers and every financial figure is calculated in code. The design lets the firm change models task by task and swap the presentation layer without touching the logic beneath it.

FAQ

Frequently Asked Questions

What is a model agnostic AI architecture?

A design that keeps business logic, data and tools independent of any one AI provider, using stable interfaces so models can be swapped without rewriting the application.

How do I avoid vendor lock-in with LLMs?

Put an interface between your application and the model, keep prompts and tool definitions provider-neutral, store tests for every task and route through a layer you control.

Should a language model do financial calculations?

No. Language models can produce plausible but wrong numbers. Keep calculations and rules in code and use the model for language tasks.

How do you choose a model for each task?

Set a quality bar, test candidates on real examples and pick the cheapest one that passes. Harder cases go to a stronger model or a person.

Can this keep sensitive data private?

Yes. Routing rules send sensitive work only to models in approved environments, including privately hosted ones.

Get Started

See what breaks when models change.

We will map the dependencies and test one swap against your quality, security and cost needs.

Assess your AI architecture

Or email us at admin@pointonezero.com.