What is AI product engineering?
AI product engineering is the design and build of software products whose core value depends on AI behaviour: AI-native applications, AI features inside existing products, copilots, semantic search, recommendations and agentic functionality. It combines product design, AI orchestration, backend and frontend engineering, evaluation and production operations.
It differs from conventional product development because the central component is probabilistic. Design, testing, pricing and support all change when the feature can be wrong.
Should we build our AI feature on a model API or on our own model?
Start on a hosted model API unless data policy, latency or unit economics rule it out. Your differentiation is the context you supply, the workflow you design and the evaluation that proves quality, not the weights. Revisit the choice when evaluation shows a gap or when volume makes self-hosting cheaper.
A model gateway from day one keeps the choice reversible: routing, fallbacks and provider changes then happen without a rewrite.
How do we know the AI feature is good enough to ship?
When it meets acceptance criteria you wrote down before building: a test set of realistic inputs with expected outputs, quality thresholds agreed with product, latency and cost budgets, and defined behaviour for failure. If those criteria do not exist, the feature is not ready, however good the demo looks.
Release gates then run the same evaluation on every change, so a prompt tweak or model update cannot silently regress quality.
How we set acceptance criteria for AI features
How does cost per interaction affect pricing?
Directly. An AI feature has a variable serving cost that traditional software does not, so the plan it sits in, the usage limits and the model tier per user all have to be designed together with the feature. Measuring cost per interaction from the first release is what makes that design possible.
We do not offer pricing advice; we make the unit economics visible so your product and finance teams can decide.
Should we build the AI product in-house or with a partner?
Build with a partner when you need senior AI engineering faster than you can hire it and want the system built so your team can own it. Build in-house when the AI behaviour is your core product and you already have the engineers. Many companies do both: a partner engineers the first production version while the permanent team is hired.
That hand-over is designed in from the start, and it is where AI Talent and an AI Micro GCC continue the journey.
Hire the engineers to own it: AI Talent