diff --git a/src/instructlab/sdg/__init__.py b/src/instructlab/sdg/__init__.py
index 348e26a4..6a0315b6 100644
--- a/src/instructlab/sdg/__init__.py
+++ b/src/instructlab/sdg/__init__.py
@@ -3,19 +3,12 @@
 # NOTE: This package imports Torch and other heavy packages.
 __all__ = (
     "Block",
-    "CombineColumnsBlock",
-    "ConditionalLLMBlock",
     "EmptyDatasetError",
-    "FilterByValueBlock",
     "FilterByValueBlockError",
     "GenerateException",
-    "ImportBlock",
-    "LLMBlock",
     "Pipeline",
     "PipelineConfigParserError",
     "PipelineContext",
-    "SamplePopulatorBlock",
-    "SelectorBlock",
     "SDG",
     "SIMPLE_PIPELINES_PACKAGE",
     "FULL_PIPELINES_PACKAGE",
@@ -24,10 +17,8 @@
 
 # Local
 from .block import Block
-from .filterblock import FilterByValueBlock, FilterByValueBlockError
+from .filterblock import FilterByValueBlockError
 from .generate_data import generate_data
-from .importblock import ImportBlock
-from .llmblock import ConditionalLLMBlock, LLMBlock
 from .pipeline import (
     FULL_PIPELINES_PACKAGE,
     SIMPLE_PIPELINES_PACKAGE,
@@ -37,6 +28,5 @@
     PipelineContext,
 )
 from .sdg import SDG
-from .utilblocks import CombineColumnsBlock, SamplePopulatorBlock, SelectorBlock
 from .utils import GenerateException
 from .utils.taxonomy import TaxonomyReadingException
diff --git a/src/instructlab/sdg/filterblock.py b/src/instructlab/sdg/filterblock.py
index 1090ce79..d738ba42 100644
--- a/src/instructlab/sdg/filterblock.py
+++ b/src/instructlab/sdg/filterblock.py
@@ -84,7 +84,6 @@ def convert_column(sample):
     return samples.map(convert_column, num_proc=num_proc)
 
 
-# This is part of the public API.
 class FilterByValueBlock(Block):
     def __init__(
         self,
diff --git a/src/instructlab/sdg/importblock.py b/src/instructlab/sdg/importblock.py
index 8efb2550..5fa479b8 100644
--- a/src/instructlab/sdg/importblock.py
+++ b/src/instructlab/sdg/importblock.py
@@ -10,7 +10,6 @@
 logger = setup_logger(__name__)
 
 
-# This is part of the public API.
 class ImportBlock(Block):
     def __init__(
         self,
diff --git a/src/instructlab/sdg/llmblock.py b/src/instructlab/sdg/llmblock.py
index 2edb51d2..00cec56b 100644
--- a/src/instructlab/sdg/llmblock.py
+++ b/src/instructlab/sdg/llmblock.py
@@ -50,7 +50,6 @@ def server_supports_batched(client, model_id: str) -> bool:
     return supported
 
 
-# This is part of the public API.
 # pylint: disable=dangerous-default-value
 class LLMBlock(Block):
     # pylint: disable=too-many-instance-attributes
@@ -229,7 +228,6 @@ def generate(self, samples: Dataset, **gen_kwargs) -> Dataset:
         return Dataset.from_list(new_data)
 
 
-# This is part of the public API.
 class ConditionalLLMBlock(LLMBlock):
     def __init__(
         self,
diff --git a/src/instructlab/sdg/utilblocks.py b/src/instructlab/sdg/utilblocks.py
index 2bd1392b..02b536f5 100644
--- a/src/instructlab/sdg/utilblocks.py
+++ b/src/instructlab/sdg/utilblocks.py
@@ -9,7 +9,6 @@
 logger = setup_logger(__name__)
 
 
-# This is part of the public API.
 class SamplePopulatorBlock(Block):
     def __init__(
         self, ctx, pipe, block_name, config_paths, column_name, post_fix=""
@@ -39,7 +38,6 @@ def generate(self, samples) -> Dataset:
         )
 
 
-# This is part of the public API.
 class SelectorBlock(Block):
     def __init__(
         self, ctx, pipe, block_name, choice_map, choice_col, output_col
@@ -68,7 +66,6 @@ def generate(self, samples: Dataset) -> Dataset:
         )
 
 
-# This is part of the public API.
 class CombineColumnsBlock(Block):
     def __init__(
         self, ctx, pipe, block_name, columns, output_col, separator="\n\n"