diff --git a/examples/openai_server.py b/examples/openai_server.py
index 2199e14..cb44644 100644
--- a/examples/openai_server.py
+++ b/examples/openai_server.py
@@ -185,7 +185,10 @@ async def _stream_chunks(voice_cfg: dict, text: str) -> AsyncGenerator[bytes, No
                     ref_audio=voice_cfg["ref_audio"],
                     ref_text=voice_cfg.get("ref_text", ""),
                     chunk_size=voice_cfg.get("chunk_size", 12),
-                    non_streaming_mode=False,
+                    non_streaming_mode=True,
+                    temperature=voice_cfg.get("temperature", 0.8),
+                    top_k=voice_cfg.get("top_k", 50),
+                    top_p=voice_cfg.get("top_p", 0.9),
                 ):
                     q.put(chunk)
         except Exception as exc:
@@ -249,6 +252,10 @@ async def create_speech(req: SpeechRequest):
                     language=voice_cfg.get("language", "Auto"),
                     ref_audio=voice_cfg["ref_audio"],
                     ref_text=voice_cfg.get("ref_text", ""),
+                    non_streaming_mode=True,
+                    temperature=voice_cfg.get("temperature", 0.8),
+                    top_k=voice_cfg.get("top_k", 50),
+                    top_p=voice_cfg.get("top_p", 0.9),
                 )
 
         audio_arrays, sr = await loop.run_in_executor(None, _generate)
@@ -306,6 +313,7 @@ def _parse_args():
     p.add_argument("--host", default="0.0.0.0", help="Bind host (default: 0.0.0.0)")
     p.add_argument("--port", type=int, default=8000, help="Bind port (default: 8000)")
     p.add_argument("--device", default="cuda", help="Torch device (default: cuda)")
+    p.add_argument("--max-seq-len", type=int, default=4096, help="Max sequence length for CUDA graph static cache (default: 4096)")
     return p.parse_args()
 
 
@@ -344,6 +352,7 @@ def main():
         args.model,
         device=args.device,
         dtype=torch.bfloat16,
+        max_seq_len=args.max_seq_len,
     )
     SAMPLE_RATE = tts_model.sample_rate
     logger.info("Model ready. Sample rate: %d Hz", SAMPLE_RATE)