diff --git a/tests/model_executor/stage_input_processors/test_qwen3_omni_streaming_helpers.py b/tests/model_executor/stage_input_processors/test_qwen3_omni_streaming_helpers.py
index e191ddb1e..9e84785eb 100644
--- a/tests/model_executor/stage_input_processors/test_qwen3_omni_streaming_helpers.py
+++ b/tests/model_executor/stage_input_processors/test_qwen3_omni_streaming_helpers.py
@@ -971,42 +971,16 @@ def test_cosyvoice3_text2flow_full_payload_nested_fallback() -> None:
 
 
 def test_cosyvoice3_full_payload_replace_keys_present() -> None:
-    """Confirm all prompt-conditioning fields replace accumulated values."""
+    """Reference tensors and their length travel as complete snapshots."""
     from vllm_omni.model_executor.stage_input_processors.cosyvoice3 import (
         _FULL_PAYLOAD_REPLACE_KEYS,
     )
 
     assert _FULL_PAYLOAD_REPLACE_KEYS == frozenset(
-        {
-            "embed.speech_token",
-            "embed.speech_feat",
-            "embed.speech_token_len",
-            "embed.embedding",
-        }
+        {"embed.speech_token", "embed.speech_token_len", "embed.speech_feat", "embed.embedding"}
     )
 
 
-def test_cosyvoice3_conditioning_replaces_snapshot_while_audio_accumulates() -> None:
-    from vllm_omni.model_executor.stage_input_processors.cosyvoice3 import _FULL_PAYLOAD_REPLACE_KEYS
-    from vllm_omni.outputs.mm_outputs import MultimodalPayload
-    from vllm_omni.outputs.output_modality import OutputModality
-
-    previous = {key: torch.ones(1, 174) for key in _FULL_PAYLOAD_REPLACE_KEYS}
-    padded = {key: torch.zeros(1, 1500) for key in _FULL_PAYLOAD_REPLACE_KEYS}
-    previous["embed.speech_token_len"] = torch.tensor([174])
-    padded["embed.speech_token_len"] = torch.tensor([174])
-    payload = MultimodalPayload.from_dict({**previous, "audio": torch.ones(2)})
-    incoming = MultimodalPayload.from_dict({**padded, "audio": torch.ones(3)})
-    assert payload is not None and incoming is not None
-
-    payload = payload.merged_with(incoming)
-    payload.consolidate_tensors(OutputModality.AUDIO)
-
-    for key in _FULL_PAYLOAD_REPLACE_KEYS:
-        assert torch.equal(payload[key], padded[key])
-    assert torch.equal(payload["audio"], torch.ones(5))
-
-
 def test_ming_flash_omni_thinker2talker_token_only_smoke() -> None:
     """Smoke: ming_flash_omni token-only carries voice metadata."""
     from vllm_omni.model_executor.stage_input_processors.ming_flash_omni import (