Why this is different from a single-tenant application
In a multi-tenant SaaS product, an AI feature's cost scales with every customer's usage, not just one — see How to Plan Payments and Subscriptions in a SaaS Product for the pricing side of this same question.
Per-tenant usage limits
Rate limits or usage caps per account prevent one customer's heavy usage from degrading the feature (or the cost) for everyone else — a control that a single-owner application typically doesn't need.
Cost allocation and pricing-tier fit
Deciding whether an AI feature is included at every plan tier, gated to higher tiers, or metered separately is a product-pricing decision as much as a technical one — worth deciding deliberately rather than defaulting to "included for everyone."
The same underlying discipline still applies
Confidence thresholds, human review paths and fallback logic — see AI-Powered Application Development — apply the same way in a SaaS context; multi-tenancy changes the cost/access model, not the reliability discipline.
Questions
Should AI features be included in every pricing tier?+
Not necessarily — this is a deliberate product decision based on your actual cost structure and customer value, not a default.
How do we prevent one customer's usage from affecting others?+
Per-tenant rate limits or usage caps, decided during scoping based on expected usage patterns.
Is the AI reliability discipline different for SaaS?+
No — confidence thresholds and human review still apply the same way; multi-tenancy changes cost/access, not reliability.