diff --git a/routes/model_routes.py b/routes/model_routes.py
index 28ec1d0..0fbf8e5 100644
--- a/routes/model_routes.py
+++ b/routes/model_routes.py
@@ -28,6 +28,33 @@ from src.auth_helpers import _auth_disabled, owner_filter
 
 logger = logging.getLogger(__name__)
 
+_SPEECH_ENDPOINT_SETTINGS = (
+    ("tts_provider", "tts_model", "tts-1", "Text to Speech"),
+    ("stt_provider", "stt_model", "base", "Speech to Text"),
+)
+
+
+def _speech_settings_using_endpoint(settings: dict, ep_id: str) -> list:
+    """Return speech settings that reference a model endpoint."""
+    endpoint_ref = f"endpoint:{ep_id}"
+    return [
+        label
+        for provider_key, _, _, label in _SPEECH_ENDPOINT_SETTINGS
+        if (settings.get(provider_key) or "") == endpoint_ref
+    ]
+
+
+def _clear_speech_settings_for_endpoint(settings: dict, ep_id: str) -> list:
+    """Reset speech settings that reference a model endpoint."""
+    endpoint_ref = f"endpoint:{ep_id}"
+    cleared = []
+    for provider_key, model_key, default_model, label in _SPEECH_ENDPOINT_SETTINGS:
+        if (settings.get(provider_key) or "") == endpoint_ref:
+            settings[provider_key] = "disabled"
+            settings[model_key] = default_model
+            cleared.append(label)
+    return cleared
+
 
 # Loopback hosts a user might type for a local model server (LM Studio,
 # llama.cpp, vLLM, …). Inside Docker these point at the *container*, not the
@@ -1442,9 +1469,7 @@ def setup_model_routes(model_discovery):
         for ep_key, (_, label) in _EP_SETTING_FIELDS.items():
             if (settings.get(ep_key) or "") == ep_id:
                 affected.append(label)
-        tts_prov = settings.get("tts_provider") or ""
-        if tts_prov == f"endpoint:{ep_id}":
-            affected.append("Text to Speech")
+        affected.extend(_speech_settings_using_endpoint(settings, ep_id))
         return affected
 
     def _clear_settings_for_endpoint(ep_id: str) -> list:
@@ -1456,11 +1481,7 @@ def setup_model_routes(model_discovery):
                 settings[ep_key] = ""
                 settings[model_key] = ""
                 cleared.append(label)
-        tts_prov = settings.get("tts_provider") or ""
-        if tts_prov == f"endpoint:{ep_id}":
-            settings["tts_provider"] = "disabled"
-            settings["tts_model"] = "tts-1"
-            cleared.append("Text to Speech")
+        cleared.extend(_clear_speech_settings_for_endpoint(settings, ep_id))
         if cleared:
             _save_settings(settings)
         return cleared
diff --git a/tests/test_model_routes.py b/tests/test_model_routes.py
index d9ca5e3..b251049 100644
--- a/tests/test_model_routes.py
+++ b/tests/test_model_routes.py
@@ -33,11 +33,40 @@ from routes.model_routes import (
     _classify_endpoint,
     _probe_endpoint,
     _truthy,
+    _speech_settings_using_endpoint,
+    _clear_speech_settings_for_endpoint,
     _PROVIDER_CURATED,
 )
 from src.llm_core import ANTHROPIC_MODELS
 
 
+# ── speech endpoint settings ──
+
+def test_speech_endpoint_dependents_include_stt():
+    settings = {"stt_provider": "endpoint:voice"}
+    assert _speech_settings_using_endpoint(settings, "voice") == ["Speech to Text"]
+
+
+def test_clear_speech_endpoint_settings_resets_tts_and_stt():
+    settings = {
+        "tts_provider": "endpoint:voice",
+        "tts_model": "custom-tts",
+        "stt_provider": "endpoint:voice",
+        "stt_model": "custom-stt",
+    }
+
+    assert _clear_speech_settings_for_endpoint(settings, "voice") == [
+        "Text to Speech",
+        "Speech to Text",
+    ]
+    assert settings == {
+        "tts_provider": "disabled",
+        "tts_model": "tts-1",
+        "stt_provider": "disabled",
+        "stt_model": "base",
+    }
+
+
 # ── _match_provider_curated ──
 
 class TestMatchProviderCurated: