fix(stats): attribute exo usage to an unknown provider (#53621)

Author: dc85

packages/stats/core/src/domain/inference.test.ts

@@ -89,6 +89,7 @@ describe("inference stat normalization", () => {
     expect(statProvider("OMEN-ALPHA-free:global", "gpt-test-model", "test-provider")).toBe("unknown")
     expect(statProvider("omen-alpha", "", "test-provider")).toBe("unknown")
     expect(statProvider("space-bunny-free", "hidden-route-model", "hidden-provider")).toBe("unknown")
+    expect(statProvider("exo-free", "gpt-test-model", "hidden-provider")).toBe("unknown")
 
     const spaceBunny = { ...aggregate("space-bunny-free", "hidden-provider"), provider_model: "hidden-route-model" }
     expect(toModelAggregate(spaceBunny)).toMatchObject([{ model: "space-bunny", provider: "unknown", requests: 1 }])
@@ -269,7 +270,7 @@ describe("inference stat normalization", () => {
     queries.forEach((query) => {
       expect(query).toContain("WHERE lower(model) NOT IN ('alpha-gpt-next')")
       expect(query).toContain(
-        "CASE\n      WHEN lower(model) IN ('omen-alpha', 'space-bunny', 'union-alpha') THEN 'unknown'\n",
+        "CASE\n      WHEN lower(model) IN ('exo', 'omen-alpha', 'space-bunny', 'union-alpha') THEN 'unknown'\n",
       )
       expect(query).toContain("= 'opencode-go/union-alpha' THEN 'union-alpha'")
       expect(query).toContain("= 'opencode/union-alpha' THEN 'union-alpha'")
@@ -342,7 +343,7 @@ describe("inference stat normalization", () => {
     expect(queries[0]?.query).toContain("AND product = 'go'")
     expect(queries[0]?.query).toContain("AND lower(model) NOT IN ('alpha-gpt-next')")
     expect(queries[0]?.query).toContain(
-      "CASE\n      WHEN lower(model) IN ('omen-alpha', 'space-bunny', 'union-alpha') THEN 'unknown'\n",
+      "CASE\n      WHEN lower(model) IN ('exo', 'omen-alpha', 'space-bunny', 'union-alpha') THEN 'unknown'\n",
     )
     expect(queries[0]?.query).toContain("= 'opencode-go/union-alpha' THEN 'union-alpha'")
     expect(queries[0]?.query).toContain("= 'opencode/union-alpha' THEN 'union-alpha'")

packages/stats/core/src/domain/model-normalization.ts

@@ -16,7 +16,7 @@ export const MODEL_AUTHOR_RULES = [
   { match: "qwen", author: "qwen" },
 ] as const
 export const EXCLUDED_MODELS = new Set(["alpha-gpt-next"])
-export const STEALTH_MODELS = new Set(["omen-alpha", "space-bunny", "union-alpha"])
+export const STEALTH_MODELS = new Set(["exo", "omen-alpha", "space-bunny", "union-alpha"])
 export const FREE_MODELS = new Set(["gpt-5-nano", "grok-code", "big-pickle"])
 export const MODEL_NAME_MAX_LENGTH = 256
 export const MODEL_NAME_ALIASES: Record<string, string> = {