diff --git a/packages/stats/core/src/domain/geo.ts b/packages/stats/core/src/domain/geo.ts
index 9f80f3507..25c5d9014 100644
--- a/packages/stats/core/src/domain/geo.ts
+++ b/packages/stats/core/src/domain/geo.ts
@@ -1,14 +1,16 @@
-import { and, asc, eq } from "drizzle-orm"
+import { and, asc, eq, inArray, or } from "drizzle-orm"
 import { Effect, Layer } from "effect"
 import * as Context from "effect/Context"
 import { DatabaseError, DrizzleClient } from "../database"
 import { geoStat } from "../database/schema"
+import { RETIRED_STAT_MODELS, RETIRED_STAT_PROVIDERS } from "./model-normalization"
 import {
   chunks,
   collapseRows,
   inserted,
   rankRowsWithMarketShare,
   statPeriodKey,
+  statRowScope,
   synthesizeAllTierRows,
   toStatBaseRow,
   UPSERT_CHUNK_SIZE,
@@ -47,6 +49,7 @@ export declare namespace GeoStatRepo {
       readonly model?: string
     }) => Effect.Effect<GeoStatRow[], DatabaseError>
     readonly upsert: (rows: GeoStatRow[]) => Effect.Effect<void, DatabaseError>
+    readonly deleteRetiredDimensions: (rows: GeoStatRow[]) => Effect.Effect<void, DatabaseError>
   }
 }
 
@@ -163,7 +166,29 @@ export class GeoStatRepo extends Context.Service<GeoStatRepo, GeoStatRepo.Servic
         )
       })
 
-      return GeoStatRepo.of({ listDaily, listByPeriod, upsert })
+      const deleteRetiredDimensions = Effect.fn("GeoStatRepo.deleteRetiredDimensions")(function* (rows: GeoStatRow[]) {
+        const scope = statRowScope(rows)
+        if (!scope) return
+
+        yield* Effect.tryPromise({
+          try: () =>
+            db
+              .delete(geoStat)
+              .where(
+                and(
+                  inArray(geoStat.grain, scope.grains),
+                  inArray(geoStat.period_key, scope.periodKeys),
+                  inArray(geoStat.dataset, scope.datasets),
+                  inArray(geoStat.client, scope.clients),
+                  inArray(geoStat.source, scope.sources),
+                  or(inArray(geoStat.provider, RETIRED_STAT_PROVIDERS), inArray(geoStat.model, RETIRED_STAT_MODELS)),
+                ),
+              ),
+          catch: (cause) => DatabaseError.make({ cause }),
+        })
+      })
+
+      return GeoStatRepo.of({ listDaily, listByPeriod, upsert, deleteRetiredDimensions })
     }),
   )
 }
diff --git a/packages/stats/core/src/domain/inference.test.ts b/packages/stats/core/src/domain/inference.test.ts
index ca5c31314..fa71fb51e 100644
--- a/packages/stats/core/src/domain/inference.test.ts
+++ b/packages/stats/core/src/domain/inference.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import { toModelAggregate, toProviderAggregate } from "./inference"
+import { toGeoAggregate, toModelAggregate, toProviderAggregate } from "./inference"
 import { modelAuthor, normalizeInferenceModel, statModel, statProvider } from "./model-normalization"
 
 describe("inference stat normalization", () => {
@@ -31,9 +31,11 @@ describe("inference stat normalization", () => {
   test("uses provider.model to resolve opencode route providers", () => {
     expect(statModel("big-pickle", "claude-sonnet-4-5")).toBe("claude-sonnet-4-5")
     expect(statModel("big-pickle", "gpt-5-free")).toBe("gpt-5")
+    expect(statModel("big-pickle", "")).toBe("unknown")
     expect(statProvider("big-pickle", "claude-sonnet-4-5", "opencode")).toBe("anthropic")
     expect(statProvider("big-pickle", "gpt-5", "opencode")).toBe("openai")
     expect(statProvider("big-pickle", "", "opencode")).toBe("unknown")
+    expect(statProvider("unknown", "", "custom-provider")).toBe("custom-provider")
   })
 
   test("model aggregates prefer provider.model and use normalized model", () => {
@@ -65,6 +67,12 @@ describe("inference stat normalization", () => {
     expect(toProviderAggregate(aggregate("big-pickle", "opencode"))).toMatchObject([{ provider: "unknown" }])
   })
 
+  test("geo aggregates never keep opencode or big-pickle dimensions", () => {
+    expect(toGeoAggregate({ ...aggregate("big-pickle", "opencode"), country: "US" })).toMatchObject([
+      { provider: "unknown", model: "unknown", country: "US" },
+    ])
+  })
+
   test("model aggregates use ISO week period keys", () => {
     expect(
       toModelAggregate({
diff --git a/packages/stats/core/src/domain/inference.ts b/packages/stats/core/src/domain/inference.ts
index 18fd6e88a..f63c35da2 100644
--- a/packages/stats/core/src/domain/inference.ts
+++ b/packages/stats/core/src/domain/inference.ts
@@ -2,7 +2,13 @@ import { Resource } from "sst/resource"
 import type { AthenaData } from "../athena"
 import type { GeoStatAggregate } from "./geo"
 import type { ModelStatAggregate } from "./model"
-import { EXCLUDED_MODELS, MODEL_AUTHOR_RULES, statModel, statProvider } from "./model-normalization"
+import {
+  EXCLUDED_MODELS,
+  MODEL_AUTHOR_RULES,
+  RETIRED_STAT_PROVIDERS,
+  statModel,
+  statProvider,
+} from "./model-normalization"
 import type { ProviderStatAggregate } from "./provider"
 import { normalizeCountry, normalizeTier, type StatBaseAggregate } from "./stat"
 
@@ -60,6 +66,7 @@ WITH normalized AS (
     model AS raw_model,
     ${statModelSql("model", "provider_model")} AS model,
     COALESCE(NULLIF(provider_model, ''), '') AS provider_model,
+    COALESCE(NULLIF(provider, ''), '') AS raw_provider,
     UPPER(COALESCE(NULLIF(cf_country, ''), 'ZZ')) AS country,
     COALESCE(NULLIF(cf_continent, ''), '') AS continent,
     session,
@@ -95,7 +102,7 @@ WITH normalized AS (
       WHEN raw_model IN ('gpt-5-nano', 'grok-code', 'big-pickle') OR regexp_like(raw_model, '-free(:global)?$') THEN 'Free'
       ELSE 'Paid'
     END AS tier,
-    ${statProviderSql("model", "provider_model")} AS provider,
+    ${statProviderSql("model", "provider_model", "raw_provider")} AS provider,
     provider_model,
     model,
     country,
@@ -241,15 +248,16 @@ function sqlString(value: string) {
 
 function statModelSql(model: string, providerModel: string) {
   return `COALESCE(NULLIF(regexp_replace(CASE
-      WHEN ${model} = 'big-pickle' THEN COALESCE(NULLIF(${providerModel}, ''), ${model})
+      WHEN lower(${model}) = 'big-pickle' THEN NULLIF(${providerModel}, '')
       ELSE ${model}
     END, '(-free|:global)+$', ''), ''), 'unknown')`
 }
 
-function statProviderSql(model: string, providerModel: string) {
+function statProviderSql(model: string, providerModel: string, provider: string) {
   return `CASE
 ${MODEL_AUTHOR_RULES.map((item) => `      WHEN strpos(lower(${providerModel}), ${sqlString(item.match)}) > 0 THEN ${sqlString(item.author)}`).join("\n")}
 ${MODEL_AUTHOR_RULES.map((item) => `      WHEN strpos(lower(${model}), ${sqlString(item.match)}) > 0 THEN ${sqlString(item.author)}`).join("\n")}
+      WHEN ${provider} <> '' AND lower(${provider}) NOT IN (${RETIRED_STAT_PROVIDERS.map(sqlString).join(", ")}) THEN ${provider}
       ELSE 'unknown'
     END`
 }
diff --git a/packages/stats/core/src/domain/model-normalization.ts b/packages/stats/core/src/domain/model-normalization.ts
index 9e6d534df..6d273afe5 100644
--- a/packages/stats/core/src/domain/model-normalization.ts
+++ b/packages/stats/core/src/domain/model-normalization.ts
@@ -13,6 +13,8 @@ export const MODEL_AUTHOR_RULES = [
   { match: "qwen", author: "qwen" },
 ] as const
 export const EXCLUDED_MODELS = new Set(["alpha-gpt-next"])
+export const RETIRED_STAT_MODELS = ["big-pickle"]
+export const RETIRED_STAT_PROVIDERS = ["opencode"]
 
 export function normalizeInferenceModel(value: string | undefined) {
   return (value || "unknown").replace(/(-free|:global)+$/, "") || "unknown"
@@ -27,7 +29,7 @@ export function modelAuthor(value: string | undefined) {
 
 export function statModel(model: string | undefined, providerModel: string | undefined) {
   const normalized = normalizeInferenceModel(model)
-  if (normalized.toLowerCase() === "big-pickle") return normalizeInferenceModel(providerModel)
+  if (RETIRED_STAT_MODELS.includes(normalized.toLowerCase())) return normalizeInferenceModel(providerModel)
   return normalized
 }
 
@@ -42,6 +44,6 @@ export function statProvider(
   const providerModelAuthor = modelAuthor(providerModel)
   if (providerModelAuthor && providerModelAuthor !== "unknown") return providerModelAuthor
   if (modelAuthorValue !== "unknown") return modelAuthorValue
-  if (provider && provider.toLowerCase() !== "opencode") return provider
+  if (provider && !RETIRED_STAT_PROVIDERS.includes(provider.toLowerCase())) return provider
   return modelAuthorValue
 }
diff --git a/packages/stats/core/src/domain/model.ts b/packages/stats/core/src/domain/model.ts
index 92aeb6eb2..fa70fd4ce 100644
--- a/packages/stats/core/src/domain/model.ts
+++ b/packages/stats/core/src/domain/model.ts
@@ -1,14 +1,16 @@
-import { and, asc, eq } from "drizzle-orm"
+import { and, asc, eq, inArray, or } from "drizzle-orm"
 import { Effect, Layer } from "effect"
 import * as Context from "effect/Context"
 import { DatabaseError, DrizzleClient } from "../database"
 import { modelStat } from "../database/schema"
+import { RETIRED_STAT_MODELS, RETIRED_STAT_PROVIDERS } from "./model-normalization"
 import {
   chunks,
   collapseRows,
   inserted,
   rankBy,
   statPeriodKey,
+  statRowScope,
   synthesizeAllTierRows,
   toStatBaseRow,
   UPSERT_CHUNK_SIZE,
@@ -39,6 +41,7 @@ export declare namespace ModelStatRepo {
   export interface Service {
     readonly listDaily: () => Effect.Effect<ModelStatMetric[], DatabaseError>
     readonly upsert: (rows: ModelStatRow[]) => Effect.Effect<void, DatabaseError>
+    readonly deleteRetiredDimensions: (rows: ModelStatRow[]) => Effect.Effect<void, DatabaseError>
   }
 }
 
@@ -120,7 +123,34 @@ export class ModelStatRepo extends Context.Service<ModelStatRepo, ModelStatRepo.
         )
       })
 
-      return ModelStatRepo.of({ listDaily, upsert })
+      const deleteRetiredDimensions = Effect.fn("ModelStatRepo.deleteRetiredDimensions")(function* (
+        rows: ModelStatRow[],
+      ) {
+        const scope = statRowScope(rows)
+        if (!scope) return
+
+        yield* Effect.tryPromise({
+          try: () =>
+            db
+              .delete(modelStat)
+              .where(
+                and(
+                  inArray(modelStat.grain, scope.grains),
+                  inArray(modelStat.period_key, scope.periodKeys),
+                  inArray(modelStat.dataset, scope.datasets),
+                  inArray(modelStat.client, scope.clients),
+                  inArray(modelStat.source, scope.sources),
+                  or(
+                    inArray(modelStat.provider, RETIRED_STAT_PROVIDERS),
+                    inArray(modelStat.model, RETIRED_STAT_MODELS),
+                  ),
+                ),
+              ),
+          catch: (cause) => DatabaseError.make({ cause }),
+        })
+      })
+
+      return ModelStatRepo.of({ listDaily, upsert, deleteRetiredDimensions })
     }),
   )
 }
diff --git a/packages/stats/core/src/domain/provider.ts b/packages/stats/core/src/domain/provider.ts
index be310e38d..3a480b3cb 100644
--- a/packages/stats/core/src/domain/provider.ts
+++ b/packages/stats/core/src/domain/provider.ts
@@ -1,13 +1,15 @@
-import { and, asc, eq } from "drizzle-orm"
+import { and, asc, eq, inArray } from "drizzle-orm"
 import { Effect, Layer } from "effect"
 import * as Context from "effect/Context"
 import { DatabaseError, DrizzleClient } from "../database"
 import { providerStat } from "../database/schema"
+import { RETIRED_STAT_PROVIDERS } from "./model-normalization"
 import {
   chunks,
   collapseRows,
   inserted,
   rankRowsWithMarketShare,
+  statRowScope,
   synthesizeAllTierRows,
   toStatBaseRow,
   UPSERT_CHUNK_SIZE,
@@ -36,6 +38,7 @@ export declare namespace ProviderStatRepo {
       readonly source?: string
     }) => Effect.Effect<ProviderStatRow[], DatabaseError>
     readonly upsert: (rows: ProviderStatRow[]) => Effect.Effect<void, DatabaseError>
+    readonly deleteRetiredDimensions: (rows: ProviderStatRow[]) => Effect.Effect<void, DatabaseError>
   }
 }
 
@@ -138,7 +141,31 @@ export class ProviderStatRepo extends Context.Service<ProviderStatRepo, Provider
         )
       })
 
-      return ProviderStatRepo.of({ listDaily, listByPeriod, upsert })
+      const deleteRetiredDimensions = Effect.fn("ProviderStatRepo.deleteRetiredDimensions")(function* (
+        rows: ProviderStatRow[],
+      ) {
+        const scope = statRowScope(rows)
+        if (!scope) return
+
+        yield* Effect.tryPromise({
+          try: () =>
+            db
+              .delete(providerStat)
+              .where(
+                and(
+                  inArray(providerStat.grain, scope.grains),
+                  inArray(providerStat.period_key, scope.periodKeys),
+                  inArray(providerStat.dataset, scope.datasets),
+                  inArray(providerStat.client, scope.clients),
+                  inArray(providerStat.source, scope.sources),
+                  inArray(providerStat.provider, RETIRED_STAT_PROVIDERS),
+                ),
+              ),
+          catch: (cause) => DatabaseError.make({ cause }),
+        })
+      })
+
+      return ProviderStatRepo.of({ listDaily, listByPeriod, upsert, deleteRetiredDimensions })
     }),
   )
 }
diff --git a/packages/stats/core/src/domain/stat.ts b/packages/stats/core/src/domain/stat.ts
index 2e10f88f1..de16fc2b1 100644
--- a/packages/stats/core/src/domain/stat.ts
+++ b/packages/stats/core/src/domain/stat.ts
@@ -147,6 +147,17 @@ export function statPeriodKey(row: StatBaseRow) {
   return [row.grain, row.period_key, row.dataset, row.tier, row.client, row.source].join("\u0000")
 }
 
+export function statRowScope(rows: StatBaseRow[]) {
+  if (rows.length === 0) return
+  return {
+    grains: unique(rows.map((row) => row.grain)),
+    periodKeys: unique(rows.map((row) => row.period_key)),
+    datasets: unique(rows.map((row) => row.dataset ?? "all")),
+    clients: unique(rows.map((row) => row.client ?? "all")),
+    sources: unique(rows.map((row) => row.source ?? "all")),
+  }
+}
+
 export function periodKeyFor(grain: StatGrain, periodStart: Date) {
   if (grain === "week") return isoWeekId(periodStart)
   return utcDateId(periodStart)
@@ -219,6 +230,10 @@ export function chunks<T>(items: T[], size: number) {
   )
 }
 
+function unique(values: string[]) {
+  return [...new Set(values)]
+}
+
 export function inserted(column: string) {
   return sql.raw(`values(\`${column}\`)`)
 }
diff --git a/packages/stats/core/src/stat-sync.ts b/packages/stats/core/src/stat-sync.ts
index 50f4e1b64..df0a317d6 100644
--- a/packages/stats/core/src/stat-sync.ts
+++ b/packages/stats/core/src/stat-sync.ts
@@ -56,6 +56,14 @@ export const syncStats: () => Effect.Effect<
     concurrency: "unbounded",
     discard: true,
   })
+  yield* Effect.all(
+    [
+      modelStats.deleteRetiredDimensions(modelRows),
+      providerStats.deleteRetiredDimensions(providerRows),
+      geoStats.deleteRetiredDimensions(geoRows),
+    ],
+    { concurrency: "unbounded", discard: true },
+  )
 
   yield* Effect.logInfo(
     `stats sync complete ${JSON.stringify({