[Refactor] [Qwen3-Omni]Modify the thinker's sampling parameters to align with transformers. (#4137)

Signed-off-by: amy-why-3459 <wuhaiyan17@huawei.com>

tests/dfx/perf/tests/test_qwen3_omni_vllm_text.json

@@ -31,11 +31,6 @@
                 ],
                 "random_input_len": 2500,
                 "random_output_len": 900,
-                "temperature": 0.4,
-                "top_p": 0.9,
-                "top_k": 1,
-                "seed": 42,
-                "repetition_penalty": 1.05,
                 "ignore_eos": true,
                 "extra_body": {
                     "modalities": [
@@ -74,11 +69,6 @@
                 "random_input_len": 100,
                 "random_output_len": 100,
                 "random_range_ratio": 0.0,
-                "temperature": 0.4,
-                "top_p": 0.9,
-                "top_k": 1,
-                "seed": 42,
-                "repetition_penalty": 1.05,
                 "ignore_eos": true,
                 "extra_body": {
                     "modalities": [
@@ -117,11 +107,6 @@
                 "random_input_len": 100,
                 "random_output_len": 100,
                 "random_range_ratio": 0.0,
-                "temperature": 0.4,
-                "top_p": 0.9,
-                "top_k": 1,
-                "seed": 42,
-                "repetition_penalty": 1.05,
                 "ignore_eos": true,
                 "extra_body": {
                     "modalities": [
@@ -162,11 +147,6 @@
                 "random_input_len": 100,
                 "random_output_len": 100,
                 "random_range_ratio": 0.0,
-                "temperature": 0.4,
-                "top_p": 0.9,
-                "top_k": 1,
-                "seed": 42,
-                "repetition_penalty": 1.05,
                 "ignore_eos": true,
                 "extra_body": {
                     "modalities": [

tests/e2e/accuracy/qwen3_omni/run_qwen_omni_acc_benchmark.py

@@ -8,7 +8,7 @@ L4-style smoke runs against an already-running server. The pytest wrappers in
 H100 / MI325) because they launch the live Omni server inside the test.
 
 1. **Daily-Omni** — MCQ accuracy fields in the saved JSON (``daily_omni_accuracy``, …); by default the
-   run **fails** if accuracy is strictly below **0.67** (``--min-daily-omni-accuracy`` / ``ACC_BENCH_MIN_DAILY_OMNI_ACCURACY``).
+   run **fails** if accuracy is strictly below **0.69** (``--min-daily-omni-accuracy`` / ``ACC_BENCH_MIN_DAILY_OMNI_ACCURACY``).
 2. **Seed-TTS** — ``seed-tts-eval``-style metrics when ``--seed-tts-wer-eval`` is used
    (WER / SIM / UTMOS keys from :func:`compute_seed_tts_wer_metrics`).
 
@@ -308,9 +308,9 @@ def build_arg_parser() -> argparse.ArgumentParser:
     p.add_argument(
         "--min-daily-omni-accuracy",
         type=float,
-        default=float((os.environ.get("ACC_BENCH_MIN_DAILY_OMNI_ACCURACY") or "0.67").strip() or "0.67"),
+        default=float((os.environ.get("ACC_BENCH_MIN_DAILY_OMNI_ACCURACY") or "0.69").strip() or "0.69"),
         help="Fail when daily_omni_accuracy is strictly below this threshold (0–1). "
-        "Default baseline 0.67; override with env ACC_BENCH_MIN_DAILY_OMNI_ACCURACY or pass 0 to disable the floor.",
+        "Default baseline 0.69; override with env ACC_BENCH_MIN_DAILY_OMNI_ACCURACY or pass 0 to disable the floor.",
     )
 
     p.add_argument(
@@ -340,7 +340,7 @@ def build_arg_parser() -> argparse.ArgumentParser:
     p.add_argument(
         "--max-seed-tts-mean-wer",
         type=float,
-        default=0.5,
+        default=0.25,
         help="If set, fail when seed_tts_content_error_mean is strictly above this value.",
     )
     p.add_argument(

tests/test_config_factory.py

@@ -1638,9 +1638,6 @@ class TestBaseConfigInheritance:
         s0 = deploy.stages[0].default_sampling_params
         # CI overrides max_tokens
         assert s0["max_tokens"] == 150
-        # Inherited from base
-        assert s0["temperature"] == 0.4
-        assert s0["seed"] == 42
 
     def test_pure_inheritance_overlay(self, tmp_path):
         """An overlay with only ``base_config`` inherits everything."""
@@ -1960,5 +1957,3 @@ class TestSamplingConstraintsPrecedence:
         assert stages[0].yaml_extras["default_sampling_params"]["detokenize"] is True
         # Pipeline says stop_token_ids=[2150] for talker
         assert stages[1].yaml_extras["default_sampling_params"]["stop_token_ids"] == [2150]
-        # Deploy temperature still flows through
-        assert stages[0].yaml_extras["default_sampling_params"]["temperature"] == 0.4

vllm_omni/deploy/qwen3_omni_moe.yaml

@@ -31,12 +31,8 @@ stages:
     enable_prefix_caching: false
     devices: "0"
     default_sampling_params:
-      temperature: 0.4
-      top_p: 0.9
-      top_k: 1
+      temperature: 0.0
       max_tokens: 2048
-      seed: 42
-      repetition_penalty: 1.05
 
   - stage_id: 1
     max_num_batched_tokens: 32768