diff --git a/tests/helpers/translator-budget.ts b/tests/helpers/translator-budget.ts
index 7245729752e..0c4e5f565dd 100644
--- a/tests/helpers/translator-budget.ts
+++ b/tests/helpers/translator-budget.ts
@@ -1,4 +1,4 @@
-import { afterEach } from "bun:test";
+import { afterEach, onTestFinished } from "bun:test";
 import type { IncomingMeta, ProviderAdapter } from "../../src/adapters/base";
 import {
   createTranslatorBudget,
@@ -8,17 +8,29 @@ import {
 
 const liveTestBudgets = new Set<TranslatorBudget>();
 
+function disposeTestTranslatorBudgets(): void {
+  for (const budget of liveTestBudgets) budget.dispose();
+  liveTestBudgets.clear();
+  resetTranslatorAggregateForTests();
+}
+
 export function createTestTranslatorBudget(options?: Parameters<typeof createTranslatorBudget>[0]): TranslatorBudget {
   const budget = createTranslatorBudget(options);
   liveTestBudgets.add(budget);
+  // The `afterEach` below only runs for the first test file that imports this module: a
+  // shared Bun process evaluates it once, so every later importer keeps its budgets and the
+  // aggregate for the rest of the run. `onTestFinished` belongs to the running test, whatever
+  // file it is in. Outside a test (module scope, `beforeAll`) it throws, and the `afterEach`
+  // stays the only cleanup.
+  try {
+    onTestFinished(disposeTestTranslatorBudgets);
+  } catch {
+    // Not inside a running test.
+  }
   return budget;
 }
 
-afterEach(() => {
-  for (const budget of liveTestBudgets) budget.dispose();
-  liveTestBudgets.clear();
-  resetTranslatorAggregateForTests();
-});
+afterEach(disposeTestTranslatorBudgets);
 
 type TestAdapter<T extends ProviderAdapter> = Omit<T, "buildRequest" | "parseStream" | "parseResponse"> & {
   buildRequest(