diff --git a/docs/serving/openai_compatible_server.md b/docs/serving/openai_compatible_server.md
index 21f6de962..438624d91 100644
--- a/docs/serving/openai_compatible_server.md
+++ b/docs/serving/openai_compatible_server.md
@@ -197,7 +197,7 @@ The following [sampling parameters](../api/README.md#inference-parameters) are s
 ??? code
 
     ```python
-    --8<-- "vllm/entrypoints/openai/protocol.py:completion-sampling-params"
+    --8<-- "vllm/entrypoints/openai/completion/protocol.py:completion-sampling-params"
     ```
 
 The following extra parameters are supported:
@@ -205,7 +205,7 @@ The following extra parameters are supported:
 ??? code
 
     ```python
-    --8<-- "vllm/entrypoints/openai/protocol.py:completion-extra-params"
+    --8<-- "vllm/entrypoints/openai/completion/protocol.py:completion-extra-params"
     ```
 
 ### Chat API
@@ -228,7 +228,7 @@ The following [sampling parameters](../api/README.md#inference-parameters) are s
 ??? code
 
     ```python
-    --8<-- "vllm/entrypoints/openai/protocol.py:chat-completion-sampling-params"
+    --8<-- "vllm/entrypoints/openai/chat_completion/protocol.py:chat-completion-sampling-params"
     ```
 
 The following extra parameters are supported:
@@ -236,7 +236,7 @@ The following extra parameters are supported:
 ??? code
 
     ```python
-    --8<-- "vllm/entrypoints/openai/protocol.py:chat-completion-extra-params"
+    --8<-- "vllm/entrypoints/openai/chat_completion/protocol.py:chat-completion-extra-params"
     ```
 
 ### Responses API
@@ -253,7 +253,7 @@ The following extra parameters in the request object are supported:
 ??? code
 
     ```python
-    --8<-- "vllm/entrypoints/openai/protocol.py:responses-extra-params"
+    --8<-- "vllm/entrypoints/openai/responses/protocol.py:responses-extra-params"
     ```
 
 The following extra parameters in the response object are supported:
@@ -261,7 +261,7 @@ The following extra parameters in the response object are supported:
 ??? code
 
     ```python
-    --8<-- "vllm/entrypoints/openai/protocol.py:responses-response-extra-params"
+    --8<-- "vllm/entrypoints/openai/responses/protocol.py:responses-response-extra-params"
     ```
 
 ### Embeddings API
@@ -378,23 +378,53 @@ The following [pooling parameters][vllm.PoolingParams] are supported.
 
 ```python
 --8<-- "vllm/pooling_params.py:common-pooling-params"
---8<-- "vllm/pooling_params.py:embedding-pooling-params"
+--8<-- "vllm/pooling_params.py:embed-pooling-params"
 ```
 
-The following extra parameters are supported by default:
+The following Embeddings API parameters are supported:
 
 ??? code
 
     ```python
-    --8<-- "vllm/entrypoints/pooling/embed/protocol.py:embedding-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:completion-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:encoding-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:embed-params"
     ```
 
-For chat-like input (i.e. if `messages` is passed), these extra parameters are supported instead:
+The following extra parameters are supported:
 
 ??? code
 
     ```python
-    --8<-- "vllm/entrypoints/pooling/embed/protocol.py:chat-embedding-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:completion-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:encoding-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:embed-extra-params"
+    ```
+
+For chat-like input (i.e. if `messages` is passed), the following parameters are supported:
+
+The following parameters are supported by default:
+
+??? code
+
+    ```python
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:chat-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:encoding-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:embed-params"
+    ```
+
+these extra parameters are supported instead:
+
+??? code
+
+    ```python
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:chat-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:encoding-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:embed-extra-params"
     ```
 
 ### Transcriptions API
@@ -659,14 +689,48 @@ The following [pooling parameters][vllm.PoolingParams] are supported.
 
 ```python
 --8<-- "vllm/pooling_params.py:common-pooling-params"
---8<-- "vllm/pooling_params.py:classification-pooling-params"
+--8<-- "vllm/pooling_params.py:classify-pooling-params"
 ```
 
+The following Classification API parameters are supported:
+
+??? code
+
+    ```python
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:completion-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:classify-params"
+    ```
+
 The following extra parameters are supported:
 
-```python
---8<-- "vllm/entrypoints/pooling/classify/protocol.py:classification-extra-params"
-```
+??? code
+
+    ```python
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:completion-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:classify-extra-params"
+    ```
+
+For chat-like input (i.e. if `messages` is passed), the following parameters are supported:
+
+??? code
+
+    ```python
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:chat-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:classify-params"
+    ```
+
+these extra parameters are supported instead:
+
+??? code
+
+    ```python
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:chat-extra-params"
+    --8<-- "vllm/entrypoints/pooling/base/protocol.py:classify-extra-params"
+    ```
 
 ### Score API
 
@@ -882,12 +946,21 @@ The following [pooling parameters][vllm.PoolingParams] are supported.
 
 ```python
 --8<-- "vllm/pooling_params.py:common-pooling-params"
---8<-- "vllm/pooling_params.py:classification-pooling-params"
+--8<-- "vllm/pooling_params.py:classify-pooling-params"
+```
+
+The following Score API parameters are supported:
+
+```python
+--8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-params"
+--8<-- "vllm/entrypoints/pooling/score/protocol.py:score-extra-params"
 ```
 
 The following extra parameters are supported:
 
 ```python
+--8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-extra-params"
+--8<-- "vllm/entrypoints/pooling/base/protocol.py:classify-extra-params"
 --8<-- "vllm/entrypoints/pooling/score/protocol.py:score-extra-params"
 ```
 
@@ -963,12 +1036,22 @@ The following [pooling parameters][vllm.PoolingParams] are supported.
 
 ```python
 --8<-- "vllm/pooling_params.py:common-pooling-params"
---8<-- "vllm/pooling_params.py:classification-pooling-params"
+--8<-- "vllm/pooling_params.py:classify-pooling-params"
+```
+
+The following Re-rank API parameters are supported:
+
+```python
+--8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-params"
+--8<-- "vllm/entrypoints/pooling/base/protocol.py:classify-extra-params"
+--8<-- "vllm/entrypoints/pooling/score/protocol.py:score-extra-params"
 ```
 
 The following extra parameters are supported:
 
 ```python
+--8<-- "vllm/entrypoints/pooling/base/protocol.py:pooling-common-extra-params"
+--8<-- "vllm/entrypoints/pooling/base/protocol.py:classify-extra-params"
 --8<-- "vllm/entrypoints/pooling/score/protocol.py:rerank-extra-params"
 ```
 
diff --git a/examples/pooling/score/convert_model_to_seq_cls.py b/examples/pooling/score/convert_model_to_seq_cls.py
index a3d31ceb1..21e294166 100644
--- a/examples/pooling/score/convert_model_to_seq_cls.py
+++ b/examples/pooling/score/convert_model_to_seq_cls.py
@@ -183,9 +183,9 @@ def parse_args():
         help="Conversion method to use",
     )
     parser.add_argument(
-        "--use-pad-token",
+        "--use-sep-token",
         action="store_true",
-        help="Enable padding token in the sequence classification model",
+        help="Enable separating token in the sequence classification model",
     )
     parser.add_argument(
         "--path",
diff --git a/tests/entrypoints/pooling/classify/test_online_vision.py b/tests/entrypoints/pooling/classify/test_online_vision.py
index aeb05c64d..215921374 100644
--- a/tests/entrypoints/pooling/classify/test_online_vision.py
+++ b/tests/entrypoints/pooling/classify/test_online_vision.py
@@ -1,27 +1,30 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-
 import json
 
 import pytest
 import requests
 
+from tests.entrypoints.test_utils import encode_base64_content_from_url
 from tests.utils import RemoteOpenAIServer
 from vllm.entrypoints.pooling.classify.protocol import ClassificationResponse
 
-VLM_MODEL_NAME = "muziyongshixin/Qwen2.5-VL-7B-for-VideoCls"
+MODEL_NAME = "muziyongshixin/Qwen2.5-VL-7B-for-VideoCls"
 MAXIMUM_VIDEOS = 1
-TEST_VIDEO_URL = "https://www.bogotobogo.com/python/OpenCV_Python/images/mean_shift_tracking/slow_traffic_small.mp4"
 
 HF_OVERRIDES = {
     "text_config": {
         "architectures": ["Qwen2_5_VLForSequenceClassification"],
     },
 }
+input_text = "This product was excellent and exceeded my expectations"
+image_url = "https://vllm-public-assets.s3.us-west-2.amazonaws.com/multimodal_asset/cat_snow.jpg"
+image_base64 = encode_base64_content_from_url(image_url)
+video_url = "https://www.bogotobogo.com/python/OpenCV_Python/images/mean_shift_tracking/slow_traffic_small.mp4"
 
 
 @pytest.fixture(scope="module")
-def server_vlm_classify():
+def server():
     args = [
         "--runner",
         "pooling",
@@ -33,26 +36,26 @@ def server_vlm_classify():
     ]
 
     with RemoteOpenAIServer(
-        VLM_MODEL_NAME, args, override_hf_configs=HF_OVERRIDES
+        MODEL_NAME, args, override_hf_configs=HF_OVERRIDES
     ) as remote_server:
         yield remote_server
 
 
-@pytest.mark.parametrize("model_name", [VLM_MODEL_NAME])
-def test_classify_accepts_chat_text_only(
-    server_vlm_classify: RemoteOpenAIServer, model_name: str
-) -> None:
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+def test_chat_text_request(server: RemoteOpenAIServer, model_name: str):
     messages = [
+        {
+            "role": "assistant",
+            "content": "Please classify this text request.",
+        },
         {
             "role": "user",
-            "content": [
-                {"type": "text", "text": "Please classify this text request."},
-            ],
-        }
+            "content": input_text,
+        },
     ]
 
     response = requests.post(
-        server_vlm_classify.url_for("classify"),
+        server.url_for("classify"),
         json={"model": model_name, "messages": messages},
     )
     response.raise_for_status()
@@ -63,25 +66,77 @@ def test_classify_accepts_chat_text_only(
     assert output.model == model_name
     assert len(output.data) == 1
     assert len(output.data[0].probs) == 2
-    assert output.usage.prompt_tokens == 22
+    assert output.usage.prompt_tokens == 35
 
 
-@pytest.mark.parametrize("model_name", [VLM_MODEL_NAME])
-def test_classify_accepts_chat_video_url(
-    server_vlm_classify: RemoteOpenAIServer, model_name: str
-) -> None:
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+def test_chat_image_url_request(server: RemoteOpenAIServer, model_name: str):
     messages = [
         {
             "role": "user",
             "content": [
-                {"type": "text", "text": "Please classify this video."},
-                {"type": "video_url", "video_url": {"url": TEST_VIDEO_URL}},
+                {"type": "text", "text": "Please classify this image."},
+                {"type": "image_url", "image_url": {"url": image_url}},
             ],
         }
     ]
 
     response = requests.post(
-        server_vlm_classify.url_for("classify"),
+        server.url_for("classify"),
+        json={"model": model_name, "messages": messages},
+    )
+    response.raise_for_status()
+
+    output = ClassificationResponse.model_validate(response.json())
+
+    assert output.object == "list"
+    assert output.model == model_name
+    assert len(output.data) == 1
+    assert len(output.data[0].probs) == 2
+    assert output.usage.prompt_tokens == 47
+
+
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+def test_chat_image_base64_request(server: RemoteOpenAIServer, model_name: str):
+    messages = [
+        {
+            "role": "user",
+            "content": [
+                {"type": "text", "text": "Please classify this image."},
+                {"type": "image_url", "image_url": image_base64},
+            ],
+        }
+    ]
+
+    response = requests.post(
+        server.url_for("classify"),
+        json={"model": model_name, "messages": messages},
+    )
+    response.raise_for_status()
+
+    output = ClassificationResponse.model_validate(response.json())
+
+    assert output.object == "list"
+    assert output.model == model_name
+    assert len(output.data) == 1
+    assert len(output.data[0].probs) == 2
+    assert output.usage.prompt_tokens == 47
+
+
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+def test_chat_video_url_request(server: RemoteOpenAIServer, model_name: str):
+    messages = [
+        {
+            "role": "user",
+            "content": [
+                {"type": "text", "text": "Please classify this video."},
+                {"type": "video_url", "video_url": {"url": video_url}},
+            ],
+        }
+    ]
+
+    response = requests.post(
+        server.url_for("classify"),
         json={"model": model_name, "messages": messages},
     )
     response.raise_for_status()
diff --git a/tests/entrypoints/test_utils.py b/tests/entrypoints/test_utils.py
index dc1101840..1f1b54267 100644
--- a/tests/entrypoints/test_utils.py
+++ b/tests/entrypoints/test_utils.py
@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+import base64
+
+import requests
+
 from vllm.entrypoints.utils import sanitize_message
 
 
@@ -8,3 +12,11 @@ def test_sanitize_message():
         sanitize_message("<_io.BytesIO object at 0x7a95e299e750>")
         == "<_io.BytesIO object>"
     )
+
+
+def encode_base64_content_from_url(content_url: str) -> dict[str, str]:
+    with requests.get(content_url) as response:
+        response.raise_for_status()
+        result = base64.b64encode(response.content).decode("utf-8")
+
+    return {"url": f"data:image/jpeg;base64,{result}"}
diff --git a/vllm/entrypoints/openai/engine/serving.py b/vllm/entrypoints/openai/engine/serving.py
index 2cf33328e..e05c287a0 100644
--- a/vllm/entrypoints/openai/engine/serving.py
+++ b/vllm/entrypoints/openai/engine/serving.py
@@ -75,6 +75,8 @@ from vllm.entrypoints.pooling.embed.protocol import (
 )
 from vllm.entrypoints.pooling.pooling.protocol import (
     IOProcessorRequest,
+    PoolingChatRequest,
+    PoolingCompletionRequest,
     PoolingResponse,
 )
 from vllm.entrypoints.pooling.score.protocol import (
@@ -138,19 +140,21 @@ logger = init_logger(__name__)
 
 CompletionLikeRequest: TypeAlias = (
     CompletionRequest
+    | TokenizeCompletionRequest
     | DetokenizeRequest
     | EmbeddingCompletionRequest
-    | RerankRequest
     | ClassificationCompletionRequest
+    | RerankRequest
     | ScoreRequest
-    | TokenizeCompletionRequest
+    | PoolingCompletionRequest
 )
 
 ChatLikeRequest: TypeAlias = (
     ChatCompletionRequest
-    | EmbeddingChatRequest
     | TokenizeChatRequest
+    | EmbeddingChatRequest
     | ClassificationChatRequest
+    | PoolingChatRequest
 )
 SpeechToTextRequest: TypeAlias = TranscriptionRequest | TranslationRequest
 AnyRequest: TypeAlias = (
diff --git a/vllm/entrypoints/pooling/base/protocol.py b/vllm/entrypoints/pooling/base/protocol.py
index 1a079306c..dd185e574 100644
--- a/vllm/entrypoints/pooling/base/protocol.py
+++ b/vllm/entrypoints/pooling/base/protocol.py
@@ -6,16 +6,22 @@ from typing import Annotated, Any
 
 from pydantic import Field, model_validator
 
+from vllm import PoolingParams
+from vllm.config.pooler import get_use_activation
 from vllm.entrypoints.chat_utils import ChatCompletionMessageParam
 from vllm.entrypoints.openai.engine.protocol import OpenAIBaseModel
 from vllm.utils import random_uuid
+from vllm.utils.serial_utils import EmbedDType, EncodingFormat, Endianness
 
 
 class PoolingBasicRequestMixin(OpenAIBaseModel):
+    # --8<-- [start:pooling-common-params]
     model: str | None = None
     user: str | None = None
-    truncate_prompt_tokens: Annotated[int, Field(ge=-1)] | None = None
+    # --8<-- [end:pooling-common-params]
 
+    # --8<-- [start:pooling-common-extra-params]
+    truncate_prompt_tokens: Annotated[int, Field(ge=-1)] | None = None
     request_id: str = Field(
         default_factory=random_uuid,
         description=(
@@ -24,7 +30,6 @@ class PoolingBasicRequestMixin(OpenAIBaseModel):
             "through out the inference process and return in response."
         ),
     )
-
     priority: int = Field(
         default=0,
         description=(
@@ -33,11 +38,15 @@ class PoolingBasicRequestMixin(OpenAIBaseModel):
             "if the served model does not use priority scheduling."
         ),
     )
+    # --8<-- [end:pooling-common-extra-params]
 
 
 class CompletionRequestMixin(OpenAIBaseModel):
+    # --8<-- [start:completion-params]
     input: list[int] | list[list[int]] | str | list[str]
+    # --8<-- [end:completion-params]
 
+    # --8<-- [start:completion-extra-params]
     add_special_tokens: bool = Field(
         default=True,
         description=(
@@ -45,11 +54,15 @@ class CompletionRequestMixin(OpenAIBaseModel):
             "the prompt."
         ),
     )
+    # --8<-- [end:completion-extra-params]
 
 
 class ChatRequestMixin(OpenAIBaseModel):
+    # --8<-- [start:chat-params]
     messages: list[ChatCompletionMessageParam]
+    # --8<-- [end:chat-params]
 
+    # --8<-- [start:chat-extra-params]
     add_generation_prompt: bool = Field(
         default=False,
         description=(
@@ -58,7 +71,6 @@ class ChatRequestMixin(OpenAIBaseModel):
             "model."
         ),
     )
-
     continue_final_message: bool = Field(
         default=False,
         description=(
@@ -69,7 +81,6 @@ class ChatRequestMixin(OpenAIBaseModel):
             "Cannot be used at the same time as `add_generation_prompt`."
         ),
     )
-
     add_special_tokens: bool = Field(
         default=False,
         description=(
@@ -80,7 +91,6 @@ class ChatRequestMixin(OpenAIBaseModel):
             "default)."
         ),
     )
-
     chat_template: str | None = Field(
         default=None,
         description=(
@@ -90,7 +100,6 @@ class ChatRequestMixin(OpenAIBaseModel):
             "does not define one."
         ),
     )
-
     chat_template_kwargs: dict[str, Any] | None = Field(
         default=None,
         description=(
@@ -98,6 +107,7 @@ class ChatRequestMixin(OpenAIBaseModel):
             "Will be accessible by the chat template."
         ),
     )
+    # --8<-- [end:chat-extra-params]
 
     @model_validator(mode="before")
     @classmethod
@@ -108,3 +118,72 @@ class ChatRequestMixin(OpenAIBaseModel):
                 "`add_generation_prompt` to True."
             )
         return data
+
+
+class EncodingRequestMixin(OpenAIBaseModel):
+    # --8<-- [start:encoding-params]
+    encoding_format: EncodingFormat = "float"
+    # --8<-- [end:encoding-params]
+
+    # --8<-- [start:encoding-extra-params]
+    embed_dtype: EmbedDType = Field(
+        default="float32",
+        description=(
+            "What dtype to use for encoding. Default to using float32 for base64 "
+            "encoding to match the OpenAI python client behavior. "
+            "This parameter will affect base64 and binary_response."
+        ),
+    )
+    endianness: Endianness = Field(
+        default="native",
+        description=(
+            "What endianness to use for encoding. Default to using native for "
+            "base64 encoding to match the OpenAI python client behavior."
+            "This parameter will affect base64 and binary_response."
+        ),
+    )
+    # --8<-- [end:encoding-extra-params]
+
+
+class EmbedRequestMixin(EncodingRequestMixin):
+    # --8<-- [start:embed-params]
+    dimensions: int | None = None
+    # --8<-- [end:embed-params]
+
+    # --8<-- [start:embed-extra-params]
+    normalize: bool | None = Field(
+        default=None,
+        description="Whether to normalize the embeddings outputs. Default is True.",
+    )
+    # --8<-- [end:embed-extra-params]
+
+    def to_pooling_params(self):
+        return PoolingParams(
+            dimensions=self.dimensions,
+            use_activation=self.normalize,
+            truncate_prompt_tokens=getattr(self, "truncate_prompt_tokens", None),
+        )
+
+
+class ClassifyRequestMixin(OpenAIBaseModel):
+    # --8<-- [start:classify-extra-params]
+    softmax: bool | None = Field(
+        default=None,
+        description="softmax will be deprecated, please use use_activation instead.",
+    )
+    activation: bool | None = Field(
+        default=None,
+        description="activation will be deprecated, please use use_activation instead.",
+    )
+    use_activation: bool | None = Field(
+        default=None,
+        description="Whether to use activation for classification outputs. "
+        "Default is True.",
+    )
+    # --8<-- [end:classify-extra-params]
+
+    def to_pooling_params(self):
+        return PoolingParams(
+            use_activation=get_use_activation(self),
+            truncate_prompt_tokens=getattr(self, "truncate_prompt_tokens", None),
+        )
diff --git a/vllm/entrypoints/pooling/classify/protocol.py b/vllm/entrypoints/pooling/classify/protocol.py
index d90665bf8..a94c7b49e 100644
--- a/vllm/entrypoints/pooling/classify/protocol.py
+++ b/vllm/entrypoints/pooling/classify/protocol.py
@@ -8,73 +8,31 @@ from pydantic import (
     Field,
 )
 
-from vllm import PoolingParams
-from vllm.config.pooler import get_use_activation
 from vllm.entrypoints.openai.engine.protocol import OpenAIBaseModel, UsageInfo
 from vllm.entrypoints.pooling.base.protocol import (
     ChatRequestMixin,
+    ClassifyRequestMixin,
     CompletionRequestMixin,
     PoolingBasicRequestMixin,
 )
 from vllm.utils import random_uuid
 
 
-class ClassificationCompletionRequest(PoolingBasicRequestMixin, CompletionRequestMixin):
-    # --8<-- [start:classification-extra-params]
-    softmax: bool | None = Field(
-        default=None,
-        description="softmax will be deprecated, please use use_activation instead.",
-    )
-
-    activation: bool | None = Field(
-        default=None,
-        description="activation will be deprecated, please use use_activation instead.",
-    )
-
-    use_activation: bool | None = Field(
-        default=None,
-        description="Whether to use activation for classification outputs. "
-        "Default is True.",
-    )
-    # --8<-- [end:classification-extra-params]
-
-    def to_pooling_params(self):
-        return PoolingParams(
-            truncate_prompt_tokens=self.truncate_prompt_tokens,
-            use_activation=get_use_activation(self),
-        )
+class ClassificationCompletionRequest(
+    PoolingBasicRequestMixin, CompletionRequestMixin, ClassifyRequestMixin
+):
+    pass
 
 
-class ClassificationChatRequest(PoolingBasicRequestMixin, ChatRequestMixin):
+class ClassificationChatRequest(
+    PoolingBasicRequestMixin, ChatRequestMixin, ClassifyRequestMixin
+):
     # --8<-- [start:chat-classification-extra-params]
     mm_processor_kwargs: dict[str, Any] | None = Field(
         default=None,
         description=("Additional kwargs to pass to the HF processor."),
     )
 
-    softmax: bool | None = Field(
-        default=None,
-        description="softmax will be deprecated, please use use_activation instead.",
-    )
-
-    activation: bool | None = Field(
-        default=None,
-        description="activation will be deprecated, please use use_activation instead.",
-    )
-
-    use_activation: bool | None = Field(
-        default=None,
-        description="Whether to use activation for classification outputs. "
-        "Default is True.",
-    )
-    # --8<-- [end:chat-classification-extra-params]
-
-    def to_pooling_params(self):
-        return PoolingParams(
-            truncate_prompt_tokens=self.truncate_prompt_tokens,
-            use_activation=get_use_activation(self),
-        )
-
 
 ClassificationRequest: TypeAlias = (
     ClassificationCompletionRequest | ClassificationChatRequest
diff --git a/vllm/entrypoints/pooling/embed/protocol.py b/vllm/entrypoints/pooling/embed/protocol.py
index ece014f4a..6cebe046d 100644
--- a/vllm/entrypoints/pooling/embed/protocol.py
+++ b/vllm/entrypoints/pooling/embed/protocol.py
@@ -7,92 +7,31 @@ from pydantic import (
     Field,
 )
 
-from vllm import PoolingParams
 from vllm.entrypoints.openai.engine.protocol import OpenAIBaseModel, UsageInfo
 from vllm.entrypoints.pooling.base.protocol import (
     ChatRequestMixin,
     CompletionRequestMixin,
+    EmbedRequestMixin,
     PoolingBasicRequestMixin,
 )
 from vllm.utils import random_uuid
-from vllm.utils.serial_utils import EmbedDType, EncodingFormat, Endianness
 
 
-class EmbeddingCompletionRequest(PoolingBasicRequestMixin, CompletionRequestMixin):
+class EmbeddingCompletionRequest(
+    PoolingBasicRequestMixin, CompletionRequestMixin, EmbedRequestMixin
+):
     # Ordered by official OpenAI API documentation
     # https://platform.openai.com/docs/api-reference/embeddings
-
-    encoding_format: EncodingFormat = "float"
-    dimensions: int | None = None
-
-    # --8<-- [start:embedding-extra-params]
-    normalize: bool | None = Field(
-        default=None,
-        description="Whether to normalize the embeddings outputs. Default is True.",
-    )
-    embed_dtype: EmbedDType = Field(
-        default="float32",
-        description=(
-            "What dtype to use for encoding. Default to using float32 for base64 "
-            "encoding to match the OpenAI python client behavior. "
-            "This parameter will affect base64 and binary_response."
-        ),
-    )
-    endianness: Endianness = Field(
-        default="native",
-        description=(
-            "What endianness to use for encoding. Default to using native for "
-            "base64 encoding to match the OpenAI python client behavior."
-            "This parameter will affect base64 and binary_response."
-        ),
-    )
-    # --8<-- [end:embedding-extra-params]
-
-    def to_pooling_params(self):
-        return PoolingParams(
-            dimensions=self.dimensions,
-            use_activation=self.normalize,
-            truncate_prompt_tokens=self.truncate_prompt_tokens,
-        )
+    pass
 
 
-class EmbeddingChatRequest(PoolingBasicRequestMixin, ChatRequestMixin):
-    encoding_format: EncodingFormat = "float"
-    dimensions: int | None = None
-
-    # --8<-- [start:chat-embedding-extra-params]
+class EmbeddingChatRequest(
+    PoolingBasicRequestMixin, ChatRequestMixin, EmbedRequestMixin
+):
     mm_processor_kwargs: dict[str, Any] | None = Field(
         default=None,
         description=("Additional kwargs to pass to the HF processor."),
     )
-    normalize: bool | None = Field(
-        default=None,
-        description="Whether to normalize the embeddings outputs. Default is True.",
-    )
-    embed_dtype: EmbedDType = Field(
-        default="float32",
-        description=(
-            "What dtype to use for encoding. Default to using float32 for base64 "
-            "encoding to match the OpenAI python client behavior. "
-            "This parameter will affect base64 and binary_response."
-        ),
-    )
-    endianness: Endianness = Field(
-        default="native",
-        description=(
-            "What endianness to use for encoding. Default to using native for "
-            "base64 encoding to match the OpenAI python client behavior."
-            "This parameter will affect base64 and binary_response."
-        ),
-    )
-    # --8<-- [end:chat-embedding-extra-params]
-
-    def to_pooling_params(self):
-        return PoolingParams(
-            truncate_prompt_tokens=self.truncate_prompt_tokens,
-            dimensions=self.dimensions,
-            use_activation=self.normalize,
-        )
 
 
 EmbeddingRequest: TypeAlias = EmbeddingCompletionRequest | EmbeddingChatRequest
diff --git a/vllm/entrypoints/pooling/pooling/protocol.py b/vllm/entrypoints/pooling/pooling/protocol.py
index daf85d311..f3b043ca0 100644
--- a/vllm/entrypoints/pooling/pooling/protocol.py
+++ b/vllm/entrypoints/pooling/pooling/protocol.py
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import time
-from typing import Generic, TypeAlias, TypeVar
+from typing import Any, Generic, TypeAlias, TypeVar
 
 from pydantic import (
     Field,
@@ -10,32 +10,25 @@ from pydantic import (
 from vllm import PoolingParams
 from vllm.config.pooler import get_use_activation
 from vllm.entrypoints.openai.engine.protocol import OpenAIBaseModel, UsageInfo
-from vllm.entrypoints.pooling.base.protocol import PoolingBasicRequestMixin
-from vllm.entrypoints.pooling.embed.protocol import (
-    EmbeddingChatRequest,
-    EmbeddingCompletionRequest,
+from vllm.entrypoints.pooling.base.protocol import (
+    ChatRequestMixin,
+    ClassifyRequestMixin,
+    CompletionRequestMixin,
+    EmbedRequestMixin,
+    EncodingRequestMixin,
+    PoolingBasicRequestMixin,
 )
 from vllm.tasks import PoolingTask
 from vllm.utils import random_uuid
-from vllm.utils.serial_utils import EmbedDType, EncodingFormat, Endianness
 
 
-class PoolingCompletionRequest(EmbeddingCompletionRequest):
+class PoolingCompletionRequest(
+    PoolingBasicRequestMixin,
+    CompletionRequestMixin,
+    EmbedRequestMixin,
+    ClassifyRequestMixin,
+):
     task: PoolingTask | None = None
-    softmax: bool | None = Field(
-        default=None,
-        description="softmax will be deprecated, please use use_activation instead.",
-    )
-    activation: bool | None = Field(
-        default=None,
-        description="activation will be deprecated, please use use_activation instead.",
-    )
-    use_activation: bool | None = Field(
-        default=None,
-        description="Whether to use activation for classification outputs. "
-        "If it is a classify or token_classify task, the default is True; "
-        "for other tasks, this value should be None.",
-    )
 
     def to_pooling_params(self):
         return PoolingParams(
@@ -45,21 +38,14 @@ class PoolingCompletionRequest(EmbeddingCompletionRequest):
         )
 
 
-class PoolingChatRequest(EmbeddingChatRequest):
+class PoolingChatRequest(
+    PoolingBasicRequestMixin, ChatRequestMixin, EmbedRequestMixin, ClassifyRequestMixin
+):
     task: PoolingTask | None = None
-    softmax: bool | None = Field(
+
+    mm_processor_kwargs: dict[str, Any] | None = Field(
         default=None,
-        description="softmax will be deprecated, please use use_activation instead.",
-    )
-    activation: bool | None = Field(
-        default=None,
-        description="activation will be deprecated, please use use_activation instead.",
-    )
-    use_activation: bool | None = Field(
-        default=None,
-        description="Whether to use activation for classification outputs. "
-        "If it is a classify or token_classify task, the default is True; "
-        "for other tasks, this value should be None.",
+        description=("Additional kwargs to pass to the HF processor."),
     )
 
     def to_pooling_params(self):
@@ -73,26 +59,9 @@ class PoolingChatRequest(EmbeddingChatRequest):
 T = TypeVar("T")
 
 
-class IOProcessorRequest(PoolingBasicRequestMixin, Generic[T]):
+class IOProcessorRequest(PoolingBasicRequestMixin, EncodingRequestMixin, Generic[T]):
     data: T
     task: PoolingTask = "plugin"
-    encoding_format: EncodingFormat = "float"
-    embed_dtype: EmbedDType = Field(
-        default="float32",
-        description=(
-            "What dtype to use for encoding. Default to using float32 for base64 "
-            "encoding to match the OpenAI python client behavior. "
-            "This parameter will affect base64 and binary_response."
-        ),
-    )
-    endianness: Endianness = Field(
-        default="native",
-        description=(
-            "What endianness to use for encoding. Default to using native for "
-            "base64 encoding to match the OpenAI python client behavior."
-            "This parameter will affect base64 and binary_response."
-        ),
-    )
 
     def to_pooling_params(self):
         return PoolingParams()
diff --git a/vllm/entrypoints/pooling/score/protocol.py b/vllm/entrypoints/pooling/score/protocol.py
index 67f1a34dd..2af43c4a8 100644
--- a/vllm/entrypoints/pooling/score/protocol.py
+++ b/vllm/entrypoints/pooling/score/protocol.py
@@ -11,7 +11,10 @@ from pydantic import (
 from vllm import PoolingParams
 from vllm.config.pooler import get_use_activation
 from vllm.entrypoints.openai.engine.protocol import OpenAIBaseModel, UsageInfo
-from vllm.entrypoints.pooling.base.protocol import PoolingBasicRequestMixin
+from vllm.entrypoints.pooling.base.protocol import (
+    ClassifyRequestMixin,
+    PoolingBasicRequestMixin,
+)
 from vllm.entrypoints.pooling.score.utils import (
     ScoreContentPartParam,
     ScoreMultiModalParam,
@@ -19,28 +22,12 @@ from vllm.entrypoints.pooling.score.utils import (
 from vllm.utils import random_uuid
 
 
-class ScoreRequestMixin(PoolingBasicRequestMixin):
+class ScoreRequestMixin(PoolingBasicRequestMixin, ClassifyRequestMixin):
     # --8<-- [start:score-extra-params]
     mm_processor_kwargs: dict[str, Any] | None = Field(
         default=None,
         description=("Additional kwargs to pass to the HF processor."),
     )
-
-    softmax: bool | None = Field(
-        default=None,
-        description="softmax will be deprecated, please use use_activation instead.",
-    )
-
-    activation: bool | None = Field(
-        default=None,
-        description="activation will be deprecated, please use use_activation instead.",
-    )
-
-    use_activation: bool | None = Field(
-        default=None,
-        description="Whether to use activation for classification outputs. "
-        "Default is True.",
-    )
     # --8<-- [end:score-extra-params]
 
     def to_pooling_params(self):
@@ -86,7 +73,7 @@ ScoreRequest: TypeAlias = (
 )
 
 
-class RerankRequest(PoolingBasicRequestMixin):
+class RerankRequest(PoolingBasicRequestMixin, ClassifyRequestMixin):
     query: str | ScoreMultiModalParam
     documents: list[str] | ScoreMultiModalParam
     top_n: int = Field(default_factory=lambda: 0)
@@ -96,29 +83,8 @@ class RerankRequest(PoolingBasicRequestMixin):
         default=None,
         description=("Additional kwargs to pass to the HF processor."),
     )
-    softmax: bool | None = Field(
-        default=None,
-        description="softmax will be deprecated, please use use_activation instead.",
-    )
-
-    activation: bool | None = Field(
-        default=None,
-        description="activation will be deprecated, please use use_activation instead.",
-    )
-
-    use_activation: bool | None = Field(
-        default=None,
-        description="Whether to use activation for classification outputs. "
-        "Default is True.",
-    )
     # --8<-- [end:rerank-extra-params]
 
-    def to_pooling_params(self):
-        return PoolingParams(
-            truncate_prompt_tokens=self.truncate_prompt_tokens,
-            use_activation=get_use_activation(self),
-        )
-
 
 class RerankDocument(BaseModel):
     text: str | None = None
diff --git a/vllm/pooling_params.py b/vllm/pooling_params.py
index 84101e1ae..cc750afd8 100644
--- a/vllm/pooling_params.py
+++ b/vllm/pooling_params.py
@@ -38,17 +38,17 @@ class PoolingParams(
     # --8<-- [end:common-pooling-params]
 
     ## for embeddings models
-    # --8<-- [start:embedding-pooling-params]
+    # --8<-- [start:embed-pooling-params]
     dimensions: int | None = None
     normalize: bool | None = None
-    # --8<-- [end:embedding-pooling-params]
+    # --8<-- [end:embed-pooling-params]
 
     ## for classification, scoring and rerank
-    # --8<-- [start:classification-pooling-params]
+    # --8<-- [start:classify-pooling-params]
     softmax: bool | None = None
     activation: bool | None = None
     use_activation: bool | None = None
-    # --8<-- [end:classification-pooling-params]
+    # --8<-- [end:classify-pooling-params]
 
     ## for step pooling models
     step_tag_id: int | None = None