RIGHT ENGINES
Build vs buy AI
A neutral comparison of build vs buy ai with practical tradeoffs and selection guidance.
What is the difference?
Buying is faster when a validated reusable system fits. Building is justified when workflow, integrations, risk, or rights are genuinely specific.
Which route fits?
Start with the smallest sufficient solution; do not custom-build merely to appear sophisticated.
What does it cost?
Cost depends on whether the smallest sufficient solution is a reusable Outcome Kit, an Engine Sprint, a Private Engine, or custom Enterprise scope. Diagnose before pricing.
What inputs are required?
The real problem, desired outcome, available evidence, constraints, environment, risk, and acceptance criteria.
What are the limitations?
No route can compensate for missing evidence, unclear authority, or a problem whose economics do not justify implementation.
When should you not buy?
When a simple safe workflow already solves the problem, when validation is impossible, or when accountable professional judgment cannot be delegated.
Published 2026-08-31 · Updated 2026-08-31 · Version 1.0