diff --git a/API.md b/API.md
index c0c70a9..901050e 100644
--- a/API.md
+++ b/API.md
@@ -61,12 +61,15 @@ GET /_status/{job_id}
 Request Response:
 {
     "task_status" : "String", //RUNNING_INDEX_BUILD, FAILED_INDEX_BUILD, COMPLETED_INDEX_BUILD
-    "index_path" : "String" // Null if not completed
+    "file_name" : "String" 
     "error_message": "String"
 }
 ```
 
-Client can expect an error in “error_message” if task_status == `FAILED_INDEX_BUILD`.
+* Client can expect an error in `error_message` if `task_status` == `FAILED_INDEX_BUILD`.
+* If `task_status` == `COMPLETED_INDEX_BUILD`, then `file_name` is the name of the index file, located
+in the same root remote store path as the `vector_path`. 
+  * Otherwise, `file_name` is `null`. 
 
 
 #### Error codes
diff --git a/remote_vector_index_builder/core/common/models/index_build_parameters.py b/remote_vector_index_builder/core/common/models/index_build_parameters.py
index e09f433..274072f 100644
--- a/remote_vector_index_builder/core/common/models/index_build_parameters.py
+++ b/remote_vector_index_builder/core/common/models/index_build_parameters.py
@@ -18,16 +18,10 @@ class DataType(str, Enum):
     """Supported data types for vector values.
 
     Attributes:
-        FLOAT32: 32-bit floating point values
-        FLOAT16: 16-bit floating point values
-        BYTE: 8-bit integer values
-        BINARY: Binary data format
+        FLOAT: 32-bit floating point values
     """
 
-    FLOAT32 = "fp32"
-    FLOAT16 = "fp16"
-    BYTE = "byte"
-    BINARY = "binary"
+    FLOAT = "float"
 
 
 class SpaceType(str, Enum):
@@ -35,19 +29,11 @@ class SpaceType(str, Enum):
 
     Attributes:
         L2: Euclidean distance
-        COSINESIMIL: Cosine similarity
-        L1: Manhattan distance
-        LINF: Chebyshev distance
         INNERPRODUCT: Dot product similarity
-        HAMMING: Hamming distance for binary vectors
     """
 
     L2 = "l2"
-    COSINESIMIL = "cosinesimil"
-    L1 = "l1"
-    LINF = "linf"
     INNERPRODUCT = "innerproduct"
-    HAMMING = "hamming"
 
 
 class Algorithm(str, Enum):
@@ -145,7 +131,7 @@ class IndexBuildParameters(BaseModel):
     tenant_id: str = ""
     dimension: int = Field(gt=0)
     doc_count: int = Field(gt=0)
-    data_type: DataType = DataType.FLOAT32
+    data_type: DataType = DataType.FLOAT
     engine: Engine = Engine.FAISS
     index_parameters: IndexParameters = Field(default_factory=IndexParameters)
     model_config = ConfigDict(extra="forbid")
diff --git a/remote_vector_index_builder/core/common/models/vectors_dataset.py b/remote_vector_index_builder/core/common/models/vectors_dataset.py
index cc73d42..4e886b2 100644
--- a/remote_vector_index_builder/core/common/models/vectors_dataset.py
+++ b/remote_vector_index_builder/core/common/models/vectors_dataset.py
@@ -47,14 +47,8 @@ def get_numpy_dtype(dtype: DataType):
         Raises:
             UnsupportedVectorsDataTypeError: If the provided data type is not supported.
         """
-        if dtype == DataType.FLOAT32:
+        if dtype == DataType.FLOAT:
             return "<f4"
-        elif dtype == DataType.FLOAT16:
-            return "<f2"
-        elif dtype == DataType.BYTE:
-            return "<i1"
-        elif dtype == DataType.BINARY:
-            return "<i1"
         else:
             raise UnsupportedVectorsDataTypeError(f"Unsupported data type: {dtype}")
 
diff --git a/remote_vector_index_builder/core/tasks.py b/remote_vector_index_builder/core/tasks.py
index 7866baf..5926040 100644
--- a/remote_vector_index_builder/core/tasks.py
+++ b/remote_vector_index_builder/core/tasks.py
@@ -113,8 +113,10 @@ def upload_index(
     Note:
         - Creates an object store instance based on the provided configuration
         - Uses the vector_path from index_build_params to determine the upload destination
+            - The upload destination has the same file path as the vector_path
+              except for the file extension. The file extension is based on the engine
         - The index_local_path must exist and be readable
-        - The function assumes index_build_params has been validated by Pydantic
+        - The function assumes index_build_params has already been validated by Pydantic
 
     Raises:
         BlobError: If there are issues uploading to the object store
@@ -124,7 +126,10 @@ def upload_index(
         index_build_params, object_store_config
     )
 
-    # vector_path is unique for each index build request, so we can simply append the local path
-    index_remote_path = index_build_params.vector_path + index_local_path
+    # vector path has already been validated that it ends with '.knnvec' by pydantic regex
+    vector_root_path = ".".join(index_build_params.vector_path.split(".")[0:-1])
+
+    # the index path is in the same root location as the vector path
+    index_remote_path = vector_root_path + "." + index_build_params.engine
 
     object_store.write_blob(index_local_path, index_remote_path)
diff --git a/test_remote_vector_index_builder/test_core/common/models/test_vectors_dataset.py b/test_remote_vector_index_builder/test_core/common/models/test_vectors_dataset.py
index 06a8cbe..96cdb4a 100644
--- a/test_remote_vector_index_builder/test_core/common/models/test_vectors_dataset.py
+++ b/test_remote_vector_index_builder/test_core/common/models/test_vectors_dataset.py
@@ -47,10 +47,7 @@ def test_free_vectors_space(vectors_dataset):
 @pytest.mark.parametrize(
     "dtype, expected",
     [
-        (DataType.FLOAT32, "<f4"),
-        (DataType.FLOAT16, "<f2"),
-        (DataType.BYTE, "<i1"),
-        (DataType.BINARY, "<i1"),
+        (DataType.FLOAT, "<f4"),
     ],
 )
 def test_get_numpy_dtype_valid(dtype, expected):
@@ -73,19 +70,13 @@ def test_check_dimensions_invalid():
         VectorsDataset.check_dimensions(vectors, 10)
 
 
-@pytest.mark.parametrize(
-    "vector_dtype", [DataType.FLOAT32, DataType.FLOAT16, DataType.BYTE, DataType.BINARY]
-)
+@pytest.mark.parametrize("vector_dtype", [DataType.FLOAT])
 def test_parse_valid_data(vector_dtype):
     # Prepare test data
     dimension = 3
     doc_count = 2
 
     arr = [[1.0, 2.0, 3.0], [4.0, 5.0, 6.0]]
-    if vector_dtype == DataType.BYTE:
-        arr = [[1, 2, 3], [4, 5, 6]]
-    elif vector_dtype == DataType.BINARY:
-        arr = [[0, 0, 0], [1, 1, 1]]
 
     test_vectors = np.array(arr, dtype=VectorsDataset.get_numpy_dtype(vector_dtype))
     test_doc_ids = np.array([1, 2], dtype="<i4")
@@ -125,7 +116,7 @@ def test_parse_invalid_doc_count():
             doc_ids=doc_ids,
             dimension=2,
             doc_count=2,
-            vector_dtype=DataType.FLOAT32,
+            vector_dtype=DataType.FLOAT,
         )
         dataset.free_vectors_space()
         vectors.close()
@@ -141,7 +132,7 @@ def test_parse_invalid_vector_dimensions():
             doc_ids=doc_ids,
             dimension=3,  # Expecting 6 values (2*3), but only provided 4
             doc_count=2,
-            vector_dtype=DataType.FLOAT32,
+            vector_dtype=DataType.FLOAT,
         )
         dataset.free_vectors_space()
         vectors.close()
@@ -160,7 +151,7 @@ def test_parse_invalid_data():
                 doc_ids=doc_ids,
                 dimension=3,
                 doc_count=2,
-                vector_dtype=DataType.FLOAT32,
+                vector_dtype=DataType.FLOAT,
             )
             dataset.free_vectors_space()
             vectors.close()
diff --git a/test_remote_vector_index_builder/test_core/test_tasks.py b/test_remote_vector_index_builder/test_core/test_tasks.py
index 9e5cd7f..3139461 100644
--- a/test_remote_vector_index_builder/test_core/test_tasks.py
+++ b/test_remote_vector_index_builder/test_core/test_tasks.py
@@ -15,6 +15,8 @@
 from core.object_store.object_store import ObjectStore
 from core.tasks import create_vectors_dataset, upload_index
 
+DEFAULT_VECTOR_NAME = "vec"
+
 
 @pytest.fixture
 def mock_object_store():
@@ -41,11 +43,11 @@ def mock_vectors_dataset_parse():
 @pytest.fixture
 def index_build_params():
     return IndexBuildParameters(
-        vector_path="vec.knnvec",
+        vector_path=DEFAULT_VECTOR_NAME + ".knnvec",
         doc_id_path="doc.knndid",
         dimension=128,
         doc_count=1000,
-        data_type="fp32",
+        data_type="float",
         repository_type="s3",
         container_name="test-bucket",
     )
@@ -128,9 +130,9 @@ def test_successful_upload(
     mock_object_store_factory.assert_called_once_with(
         index_build_params, object_store_config
     )
-    mock_object_store.write_blob.assert_called_once_with(
-        local_path, index_build_params.vector_path + local_path
-    )
+
+    remote_path = DEFAULT_VECTOR_NAME + "." + index_build_params.engine
+    mock_object_store.write_blob.assert_called_once_with(local_path, remote_path)
 
 
 def test_upload_blob_error_handling(