diff --git a/changelog.d/fixes/10346-empty-pool-warn-once.md b/changelog.d/fixes/10346-empty-pool-warn-once.md
new file mode 100644
index 0000000000..e4b50ef3ff
--- /dev/null
+++ b/changelog.d/fixes/10346-empty-pool-warn-once.md
@@ -0,0 +1 @@
+- **fix(backend):** log `auto/<family> matched no connected models` once per process per label instead of every minute ([#10346](https://github.com/diegosouzapw/OmniRoute/issues/10346))
diff --git a/open-sse/services/autoCombo/virtualFactory.ts b/open-sse/services/autoCombo/virtualFactory.ts
index a55a70686b..f468f23005 100644
--- a/open-sse/services/autoCombo/virtualFactory.ts
+++ b/open-sse/services/autoCombo/virtualFactory.ts
@@ -44,21 +44,19 @@ export interface AutoComboSpec {
   family?: ModelFamily;
 }
 
-/** Rate-limit empty-pool AUTO warns (same label can be resolved many times/min). */
-const emptyPoolWarnAt = new Map<string, number>();
-export const EMPTY_POOL_WARN_INTERVAL_MS = 60_000;
+/** Once-per-process empty-pool AUTO warns (steady empty is not a metronome). */
+const emptyPoolWarned = new Set<string>();
 
-export function warnEmptyAutoPoolOnce(label: string, message: string, now = Date.now()): boolean {
-  const last = emptyPoolWarnAt.get(label) ?? 0;
-  if (now - last < EMPTY_POOL_WARN_INTERVAL_MS) return false;
-  emptyPoolWarnAt.set(label, now);
+export function warnEmptyAutoPoolOnce(label: string, message: string, _now = Date.now()): boolean {
+  if (emptyPoolWarned.has(label)) return false;
+  emptyPoolWarned.add(label);
   log.warn("AUTO", message);
   return true;
 }
 
-/** Test-only: reset the debounce map. */
+/** Test-only: reset the once-per-label set (also models emptiness reappearing). */
 export function resetEmptyAutoPoolWarnStateForTests(): void {
-  emptyPoolWarnAt.clear();
+  emptyPoolWarned.clear();
 }
 
 /** Minimal connection shape needed for virtual auto-combo factory */
diff --git a/tests/unit/auto-empty-pool-warn-once.test.ts b/tests/unit/auto-empty-pool-warn-once.test.ts
index 016b2e0997..9d2436aad1 100644
--- a/tests/unit/auto-empty-pool-warn-once.test.ts
+++ b/tests/unit/auto-empty-pool-warn-once.test.ts
@@ -1,18 +1,24 @@
+import test from "node:test";
 import assert from "node:assert/strict";
-import { test } from "node:test";
 
 import {
-  EMPTY_POOL_WARN_INTERVAL_MS,
   resetEmptyAutoPoolWarnStateForTests,
   warnEmptyAutoPoolOnce,
 } from "../../open-sse/services/autoCombo/virtualFactory.ts";
 
-test("warnEmptyAutoPoolOnce emits at most once per label per interval", () => {
+test("warnEmptyAutoPoolOnce emits at most once per label per process", () => {
   resetEmptyAutoPoolWarnStateForTests();
-  const t0 = 1_000_000;
+  const t0 = 1_700_000_000_000;
   assert.equal(warnEmptyAutoPoolOnce("auto/zai", "empty", t0), true);
   assert.equal(warnEmptyAutoPoolOnce("auto/zai", "empty", t0 + 1), false);
-  assert.equal(warnEmptyAutoPoolOnce("auto/zai", "empty", t0 + EMPTY_POOL_WARN_INTERVAL_MS - 1), false);
+  assert.equal(warnEmptyAutoPoolOnce("auto/zai", "empty", t0 + 60_000), false);
+  assert.equal(warnEmptyAutoPoolOnce("auto/zai", "empty", t0 + 3_600_000), false);
   assert.equal(warnEmptyAutoPoolOnce("auto/other", "empty", t0 + 1), true);
-  assert.equal(warnEmptyAutoPoolOnce("auto/zai", "empty", t0 + EMPTY_POOL_WARN_INTERVAL_MS), true);
+});
+
+test("resetEmptyAutoPoolWarnStateForTests allows a later warn (emptiness reappeared)", () => {
+  resetEmptyAutoPoolWarnStateForTests();
+  assert.equal(warnEmptyAutoPoolOnce("auto/zai", "empty"), true);
+  resetEmptyAutoPoolWarnStateForTests();
+  assert.equal(warnEmptyAutoPoolOnce("auto/zai", "empty"), true);
 });