# Same question, two tenants shop-a asks "How do I reset my account password?" -> model call (calls so far: 1) shop-b asks the identical question -> model call, no hit (model calls so far: 2) shop-a asks again -> cache hit entries in the index: 2 (one per tenant) The filter is a tag on the document and an expression on the search: tenant == 'shop-b'. nearest(shop-a, q) without asking as shop-b still finds: "How do I reset my account password?"