diff --git a/tests/tools/test_transcription_tools.py b/tests/tools/test_transcription_tools.py
index 434971e9aac4..6db9df0b6365 100644
--- a/tests/tools/test_transcription_tools.py
+++ b/tests/tools/test_transcription_tools.py
@@ -919,6 +919,17 @@ def test_default_model_used_when_none(self, sample_ogg):
 
         assert mock_groq.call_args[0][1] == DEFAULT_GROQ_STT_MODEL
 
+    def test_config_groq_model_used(self, sample_ogg):
+        config = {"groq": {"model": "whisper-large-v3"}}
+        with patch("tools.transcription_tools._load_stt_config", return_value=config), \
+             patch("tools.transcription_tools._get_provider", return_value="groq"), \
+             patch("tools.transcription_tools._transcribe_groq",
+                   return_value={"success": True, "transcript": "hi"}) as mock_groq:
+            from tools.transcription_tools import transcribe_audio
+            transcribe_audio(sample_ogg, model=None)
+
+        assert mock_groq.call_args[0][1] == "whisper-large-v3"
+
     def test_config_local_model_used(self, sample_ogg):
         config = {"local": {"model": "small"}}
         with patch("tools.transcription_tools._load_stt_config", return_value=config), \
diff --git a/tools/transcription_tools.py b/tools/transcription_tools.py
index 49f8cbaca226..87e7631370ae 100644
--- a/tools/transcription_tools.py
+++ b/tools/transcription_tools.py
@@ -1671,7 +1671,8 @@ def transcribe_audio(file_path: str, model: Optional[str] = None) -> Dict[str, A
         return _transcribe_local_command(file_path, model_name)
 
     if provider == "groq":
-        model_name = model or DEFAULT_GROQ_STT_MODEL
+        groq_cfg = stt_config.get("groq", {})
+        model_name = model or groq_cfg.get("model", DEFAULT_GROQ_STT_MODEL)
         return _transcribe_groq(file_path, model_name)
 
     if provider == "openai":