AI Enabled SaaS Development by Alpha Expansion
AI Enabled SaaS01Tenant isolation02Usage metering03Cost controlsBook a call

AI Enabled SaaS Development

AI products thatprotect their margins

We build subscription software with AI features at its core, keeping each customer's data separate, metering model usage per account and controlling cost so the product stays profitable as it grows.

Tenant isolationUsage meteringCost controls
Tenant isolation
Usage metering
01Our Approach

In an AI product every request has a price, so margins depend on engineering choices made long before the first invoice is sent.

02Overview

A SaaS product with AI built in

  • 01Tenant isolation
  • 02Usage metering
  • 03Cost controls

AI enabled SaaS is multi-tenant software in which language models do part of the work for every customer. Beyond the usual accounts, billing and administration, it needs data isolation that extends into prompts and search indexes, metering of model usage per tenant, limits that protect your margins and evaluation that keeps quality steady across releases.

It suits founders building a new AI product and established SaaS companies adding AI features to a platform customers already pay for. The two differ. A new product can be designed around these needs, while an existing one must fit them into current plans and architecture. We have a view on both and begin from your pricing model.

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03What We Do

Capabilities, End to End

01
Multi-tenant architecture

Accounts, roles, workspaces and data are separated per customer at the database, storage and search layers, with isolation tested as carefully as any feature.

02
Tenant-safe AI

Prompts, retrieved documents, caches and logs are scoped to one customer at a time, so nothing belonging to one account can surface in another's answer.

03
Usage metering

Every model call is recorded against the account, user and feature that caused it, giving the figures needed for billing, limits and pricing decisions.

04
Plans and limits

Subscription tiers carry allowances for AI usage, with soft warnings, hard caps and paid top-ups that the product enforces automatically.

05
Cost optimization

Requests are routed to the cheapest model that meets the quality bar, repeated work is cached and long tasks run in the background to control spending.

06
Quality across releases

An evaluation set runs on every change to prompts or models, so an improvement for one use case does not quietly degrade another customer's results.

04In Production

What It Looks Like When It Ships

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$99
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✓
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✓
5 seats
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INV-1042
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INV-1019
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MAYA CHEN
09/28
Tenant isolation
Usage metering
Cost controls
Tenant boundaryUsage meterPlan limitsMargin view
05What You Receive

Handed Over, Ready to Run

SCROLL
01
Multi-tenant SaaS application
02
Tenant-scoped AI pipeline
03
Usage metering and reports
04
Plans, limits and billing
05
Model routing and caching
06
Evaluation set and dashboards
07
Admin and support tools
08
Infrastructure and documentation
06How It Runs

From Kickoff to Launch

01
Model the economics
02
Design the platform
03
Build the core
04
Launch and tune
01
Model the economics

We start from your pricing and estimate the model cost of each feature per customer, which shows early whether a plan is profitable and where limits or cheaper models are needed.

02
Design the platform

Tenancy, data isolation, the AI pipeline, metering and billing are designed together, since retrofitting any one of them into a running product is far harder than planning it.

03
Build the core

The first release contains one valuable AI feature working end to end for real tenants, with isolation, usage tracking and evaluation in place, instead of many features resting on weak foundations.

04
Launch and tune

Early customers use the product while we watch quality, usage and cost per account, adjust limits and model choices from real data and add features in order of demand.

07Technology

The Stack We Use

ApplicationNext.jsReactNode.jsTypeScriptAI layerOpenAI APIAnthropic APIVercel AI SDKLangfuseApplicationNext.jsReactNode.jsTypeScriptAI layerOpenAI APIAnthropic APIVercel AI SDKLangfuse
DataPostgreSQLRow level securitypgvectorRedisBillingStripe BillingUsage recordsWebhooksCustomer portalDataPostgreSQLRow level securitypgvectorRedisBillingStripe BillingUsage recordsWebhooksCustomer portal
08Who It Is For

Built for Teams Like Yours

FLAGSHIP
Your product needs AI without losing its margins

You are building an AI product or adding AI to an existing platform. Customers expect their data to stay private, heavy users could consume more than they pay for and quality has to hold as the prompts evolve. You want the platform designed for all three.

New AI product startups
SaaS adding AI features
Vertical tools for one industry
Internal tools becoming products
Platforms with usage pricing
Products for enterprise buyers
09Questions

What buyers ask before they start

If yours is not here, ask us directly. The first conversation is free and useful whether or not we work together.

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Isolation is enforced at every layer the AI touches. Database rows, files, search indexes and caches are keyed to the tenant, and the pipeline can only retrieve within the account of the signed-in user. Prompts are assembled per request and never mix sources. We write automated tests that try to cross the boundary, since this is the failure an AI product cannot afford.

Start from what a request costs you. Common models are a usage allowance inside each plan with paid top-ups, credits that customers spend, or a higher tier that includes the AI features. Flat unlimited pricing is risky while model costs vary with use. We build metering first so that pricing can be based on observed behavior and changed without rewriting the product.

The product should handle it by design. Each account has limits per period, with a warning as it approaches them and a clear choice when it reaches them, such as upgrading or waiting. Background jobs are queued fairly so one tenant cannot slow the others. You see the heaviest users in a dashboard and can adjust their plan before the cost becomes a problem.

Yes. We review the current architecture, tenancy model and billing, then design the AI layer to fit them. Typical first steps are a metering service, a tenant-scoped retrieval index and one feature released to a subset of customers. Where the existing platform lacks proper isolation, that is addressed first, because AI features magnify any weakness in how data is separated.

Preferably none exclusively. We put a thin layer between the product and the providers, so that models can be swapped per feature as prices and quality change. Evaluation makes such a switch a measured decision. Enterprise customers may also ask for a specific provider or region, and an architecture that already supports several can say yes without a rebuild.

10Related services

Often built together

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Every engagement starts with a scoping conversation. It is free, structured, and useful whether or not we work together.

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Premium digital product and engineering studio. We build high-performance web platforms, SaaS applications, mobile apps, and 3D experiences for high-growth companies.

Alpha Expansion is a premium digital product and engineering studio specializing in React development, Next.js development, full-stack development, mobile app development, UI/UX design, and 3D interactive experiences.

We serve industries including SaaS, FinTech, Healthcare, E-commerce, Logistics, and Real Estate.