diff --git a/assemblyai/types.py b/assemblyai/types.py
index e20b1c3..fd1aa30 100644
--- a/assemblyai/types.py
+++ b/assemblyai/types.py
@@ -829,6 +829,12 @@ class SpeakerOptions(BaseModel):
         None,
         description="Enable or disable two-stage clustering for speaker diarization",
     )
+    short_file_diarization_method: Optional[
+        Literal["deliberate", "balanced", "conservative", "aggressive"]
+    ] = Field(
+        None,
+        description="Diarization method for short files. Options: deliberate (default), balanced, conservative, aggressive",
+    )
     long_file_diarization_method: Optional[Literal["standard", "experimental"]] = Field(
         None,
         description="Diarization method for long files. Options: standard (default), experimental",
diff --git a/tests/unit/test_speaker_options.py b/tests/unit/test_speaker_options.py
index 46bd427..3fe937e 100644
--- a/tests/unit/test_speaker_options.py
+++ b/tests/unit/test_speaker_options.py
@@ -129,6 +129,30 @@ def test_transcription_config_with_two_stage_clustering():
     assert config.speaker_options.use_two_stage_clustering is False
 
 
+def test_speaker_options_short_file_diarization_method():
+    """Test that SpeakerOptions can be created with short_file_diarization_method."""
+    speaker_options = aai.SpeakerOptions(short_file_diarization_method="deliberate")
+    assert speaker_options.short_file_diarization_method == "deliberate"
+
+
+def test_speaker_options_short_file_diarization_all_methods():
+    """Test all valid values for short_file_diarization_method."""
+    methods = ["deliberate", "balanced", "conservative", "aggressive"]
+    for method in methods:
+        speaker_options = aai.SpeakerOptions(short_file_diarization_method=method)
+        assert speaker_options.short_file_diarization_method == method
+
+
+def test_speaker_options_with_diarization_methods():
+    """Test that SpeakerOptions can be created with both diarization methods."""
+    speaker_options = aai.SpeakerOptions(
+        short_file_diarization_method="balanced",
+        long_file_diarization_method="experimental",
+    )
+    assert speaker_options.short_file_diarization_method == "balanced"
+    assert speaker_options.long_file_diarization_method == "experimental"
+
+
 def test_speaker_options_long_file_diarization_method():
     """Test that SpeakerOptions can be created with long_file_diarization_method."""
     speaker_options = aai.SpeakerOptions(long_file_diarization_method="experimental")
@@ -164,6 +188,7 @@ def test_transcription_config_with_all_speaker_options():
         min_speakers_expected=2,
         max_speakers_expected=5,
         use_two_stage_clustering=False,
+        short_file_diarization_method="conservative",
         long_file_diarization_method="experimental",
     )
 
@@ -175,4 +200,5 @@ def test_transcription_config_with_all_speaker_options():
     assert config.speaker_options.min_speakers_expected == 2
     assert config.speaker_options.max_speakers_expected == 5
     assert config.speaker_options.use_two_stage_clustering is False
+    assert config.speaker_options.short_file_diarization_method == "conservative"
     assert config.speaker_options.long_file_diarization_method == "experimental"