SaaS & Product Engineering
How to Build a Scalable SaaS Product with AI Capabilities
Scale the tenant boundary before you scale the model
An AI SaaS product fails in a specific way: customer A asks a question and the retrieval set includes customer B's files. That is a data breach with a fluent voice. Aqlithos designs the tenant boundary first. Each account has its own documents, its own users, and a log that names the account. The model is stateless. The database is not.
Aqlibot is the public product that already has accounts, channels, and knowledge per bot. Use it as evidence that Aqlithos builds this class of software. Do not treat a screenshot as an architecture you can copy without a design.
The smallest architecture that can grow
Twelve-factor ideas apply: config in the environment, logs as a stream, and processes that can be restarted. The AI-specific rules are shorter.
What to build in the first SaaS release.
| Piece | First release | Later |
|---|---|---|
| Tenancy | A tenant id on every row and file | More regions |
| AI job | One workflow, such as answers from that tenant's files | Tools and agents |
| Billing | A plan you can explain | Usage meters you have measured |
| Ops | One pipeline and a rollback | A cluster, if you already need it |
Security and cost are product features
Put the model key on the server. Record which tenant called the model and roughly what it cost, so a loud customer cannot surprise you. OWASP's LLM risks apply inside your product the same way they apply in a one-off bot. A tenant who can paste instructions that read another tenant's data has found the bug that matters.
Aqlithos will not start a SaaS engagement by drawing ten microservices. The custom software page describes architecture, tests, and handover. The generative AI page describes the model boundary. Together they are the offer. There is no separate SaaS URL, because a second page would repeat this one.
Questions buyers ask
- Is Aqlibot the reference product?
- Aqlibot is Aqlithos's own chatbot builder, described on the work page. It shows a multi-tenant product shape. It is not a template you license from this article.
- When is the product not ready for many customers?
- When one customer's documents can appear in another customer's answer. Fix isolation before you scale traffic.
- Where do we start commercially?
- The custom software service. The contact form starts briefings from 2,000 US dollars and the reply defines the first slice.
Sources
Looking to build an AI-powered solution for your business? Explore Aqlithos engineering services or contact our team to discuss your project.
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