diff --git a/tests/unit/test_cores/test_knowledge_manager.py b/tests/unit/test_cores/test_knowledge_manager.py
index 96c9c427..8c37ca32 100644
--- a/tests/unit/test_cores/test_knowledge_manager.py
+++ b/tests/unit/test_cores/test_knowledge_manager.py
@@ -98,7 +98,7 @@ def sample_graph_embeddings():
         entities=[
             EntityEmbeddings(
                 entity=Term(type=IRI, iri="http://example.org/john"),
-                vectors=[[0.1, 0.2, 0.3]]
+                vector=[0.1, 0.2, 0.3]
             )
         ]
     )
diff --git a/tests/unit/test_storage/test_doc_embeddings_pinecone_storage.py b/tests/unit/test_storage/test_doc_embeddings_pinecone_storage.py
index e5c1e91e..fec4f87e 100644
--- a/tests/unit/test_storage/test_doc_embeddings_pinecone_storage.py
+++ b/tests/unit/test_storage/test_doc_embeddings_pinecone_storage.py
@@ -286,37 +286,39 @@ class TestPineconeDocEmbeddingsStorageProcessor:
         message.metadata.user = 'test_user'
         message.metadata.collection = 'test_collection'
         
-        chunk = ChunkEmbeddings(
-            chunk=b"Document with mixed dimensions",
-            vectors=[
-                [0.1, 0.2],  # 2D vector
-                [0.3, 0.4, 0.5, 0.6],  # 4D vector
-                [0.7, 0.8, 0.9]  # 3D vector
-            ]
+        # Each chunk has a single vector of different dimensions
+        chunk1 = ChunkEmbeddings(
+            chunk=b"Document chunk 1",
+            vector=[0.1, 0.2]  # 2D vector
         )
-        message.chunks = [chunk]
-        
-        mock_index_2d = MagicMock()
-        mock_index_4d = MagicMock()
-        mock_index_3d = MagicMock()
-        
+        chunk2 = ChunkEmbeddings(
+            chunk=b"Document chunk 2",
+            vector=[0.3, 0.4, 0.5, 0.6]  # 4D vector
+        )
+        chunk3 = ChunkEmbeddings(
+            chunk=b"Document chunk 3",
+            vector=[0.7, 0.8, 0.9]  # 3D vector
+        )
+        message.chunks = [chunk1, chunk2, chunk3]
+
+        mock_index = MagicMock()
+
         def mock_index_side_effect(name):
             # All dimensions now use the same index name pattern
-            # Different dimensions will be handled within the same index
             if "test_user" in name and "test_collection" in name:
-                return mock_index_2d  # Just return one mock for all
+                return mock_index
             return MagicMock()
-        
+
         processor.pinecone.Index.side_effect = mock_index_side_effect
         processor.pinecone.has_index.return_value = True
-        
+
         with patch('uuid.uuid4', side_effect=['id1', 'id2', 'id3']):
             await processor.store_document_embeddings(message)
         
         # Verify all vectors are now stored in the same index
-        # (Pinecone can handle mixed dimensions in the same index)
-        assert processor.pinecone.Index.call_count == 3  # Called once per vector
-        mock_index_2d.upsert.call_count == 3  # All upserts go to same index
+        # (Each chunk has a single vector, called once per chunk)
+        assert processor.pinecone.Index.call_count == 3  # Called once per chunk
+        assert mock_index.upsert.call_count == 3  # All upserts go to same index
 
     @pytest.mark.asyncio
     async def test_store_document_embeddings_empty_chunks_list(self, processor):
@@ -346,7 +348,7 @@ class TestPineconeDocEmbeddingsStorageProcessor:
         
         chunk = ChunkEmbeddings(
             chunk=b"Document with no vectors",
-            vectors=[]
+            vector=[]
         )
         message.chunks = [chunk]
         
diff --git a/tests/unit/test_storage/test_graph_embeddings_pinecone_storage.py b/tests/unit/test_storage/test_graph_embeddings_pinecone_storage.py
index 0fd0fde3..bba30caa 100644
--- a/tests/unit/test_storage/test_graph_embeddings_pinecone_storage.py
+++ b/tests/unit/test_storage/test_graph_embeddings_pinecone_storage.py
@@ -24,16 +24,20 @@ class TestPineconeGraphEmbeddingsStorageProcessor:
         message.metadata.user = 'test_user'
         message.metadata.collection = 'test_collection'
         
-        # Create test entity embeddings
+        # Create test entity embeddings (each entity has a single vector)
         entity1 = EntityEmbeddings(
             entity=Value(value="http://example.org/entity1", is_uri=True),
-            vectors=[[0.1, 0.2, 0.3], [0.4, 0.5, 0.6]]
+            vector=[0.1, 0.2, 0.3]
         )
         entity2 = EntityEmbeddings(
-            entity=Value(value="entity2", is_uri=False),
-            vectors=[[0.7, 0.8, 0.9]]
+            entity=Value(value="http://example.org/entity2", is_uri=True),
+            vector=[0.4, 0.5, 0.6]
         )
-        message.entities = [entity1, entity2]
+        entity3 = EntityEmbeddings(
+            entity=Value(value="entity3", is_uri=False),
+            vector=[0.7, 0.8, 0.9]
+        )
+        message.entities = [entity1, entity2, entity3]
         
         return message
 
@@ -190,7 +194,7 @@ class TestPineconeGraphEmbeddingsStorageProcessor:
 
         entity = EntityEmbeddings(
             entity=Value(value="test_entity", is_uri=False),
-            vectors=[[0.1, 0.2, 0.3]]
+            vector=[0.1, 0.2, 0.3]
         )
         message.entities = [entity]
 
@@ -222,7 +226,7 @@ class TestPineconeGraphEmbeddingsStorageProcessor:
         
         entity = EntityEmbeddings(
             entity=Value(value="", is_uri=False),
-            vectors=[[0.1, 0.2, 0.3]]
+            vector=[0.1, 0.2, 0.3]
         )
         message.entities = [entity]
         
@@ -244,7 +248,7 @@ class TestPineconeGraphEmbeddingsStorageProcessor:
         
         entity = EntityEmbeddings(
             entity=Value(value=None, is_uri=False),
-            vectors=[[0.1, 0.2, 0.3]]
+            vector=[0.1, 0.2, 0.3]
         )
         message.entities = [entity]
         
@@ -322,7 +326,7 @@ class TestPineconeGraphEmbeddingsStorageProcessor:
         
         entity = EntityEmbeddings(
             entity=Value(value="test_entity", is_uri=False),
-            vectors=[]
+            vector=[]
         )
         message.entities = [entity]
         
@@ -344,7 +348,7 @@ class TestPineconeGraphEmbeddingsStorageProcessor:
 
         entity = EntityEmbeddings(
             entity=Value(value="test_entity", is_uri=False),
-            vectors=[[0.1, 0.2, 0.3]]
+            vector=[0.1, 0.2, 0.3]
         )
         message.entities = [entity]
 
@@ -369,7 +373,7 @@ class TestPineconeGraphEmbeddingsStorageProcessor:
 
         entity = EntityEmbeddings(
             entity=Value(value="test_entity", is_uri=False),
-            vectors=[[0.1, 0.2, 0.3]]
+            vector=[0.1, 0.2, 0.3]
         )
         message.entities = [entity]