diff --git a/examples/openai_server.py b/examples/openai_server.py
index 61047ea..2b0c8bb 100644
--- a/examples/openai_server.py
+++ b/examples/openai_server.py
@@ -187,7 +187,10 @@ async def _stream_chunks(voice_cfg: dict, text: str) -> AsyncGenerator[bytes, No
                     ref_text=voice_cfg.get("ref_text", ""),
                     chunk_size=voice_cfg.get("chunk_size", 12),
                     instruct=voice_cfg.get("instruct"),
-                    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:
@@ -252,6 +255,10 @@ async def create_speech(req: SpeechRequest):
                     ref_audio=voice_cfg["ref_audio"],
                     ref_text=voice_cfg.get("ref_text", ""),
                     instruct=voice_cfg.get("instruct"),
+                    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)
@@ -306,4 +309,5 @@ 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()
@@ -341,6 +349,7 @@ def main():
     logger.info("Loading model %s on %s …", args.model, args.device)
     tts_model = FasterQwen3TTS.from_pretrained(
         args.model,
         device=args.device,
         dtype=torch.bfloat16,
+        max_seq_len=args.max_seq_len,
     )