diff --git a/docs/source/providers/files/inline_localfs.md b/docs/source/providers/files/inline_localfs.md
index 54c489c7d..09267b7d8 100644
--- a/docs/source/providers/files/inline_localfs.md
+++ b/docs/source/providers/files/inline_localfs.md
@@ -8,7 +8,7 @@ Local filesystem-based file storage provider for managing files and documents lo
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `storage_dir` | `<class 'str'>` | No | PydanticUndefined | Directory to store uploaded files |
+| `storage_dir` | `<class 'str'>` | No |  | Directory to store uploaded files |
 | `metadata_store` | `utils.sqlstore.sqlstore.SqliteSqlStoreConfig \| utils.sqlstore.sqlstore.PostgresSqlStoreConfig` | No | sqlite | SQL store configuration for file metadata |
 | `ttl_secs` | `<class 'int'>` | No | 31536000 |  |
 
diff --git a/docs/source/providers/inference/remote_hf_endpoint.md b/docs/source/providers/inference/remote_hf_endpoint.md
index f9ca6b538..8aaf13476 100644
--- a/docs/source/providers/inference/remote_hf_endpoint.md
+++ b/docs/source/providers/inference/remote_hf_endpoint.md
@@ -8,7 +8,7 @@ HuggingFace Inference Endpoints provider for dedicated model serving.
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `endpoint_name` | `<class 'str'>` | No | PydanticUndefined | The name of the Hugging Face Inference Endpoint in the format of '{namespace}/{endpoint_name}' (e.g. 'my-cool-org/meta-llama-3-1-8b-instruct-rce'). Namespace is optional and will default to the user account if not provided. |
+| `endpoint_name` | `<class 'str'>` | No |  | The name of the Hugging Face Inference Endpoint in the format of '{namespace}/{endpoint_name}' (e.g. 'my-cool-org/meta-llama-3-1-8b-instruct-rce'). Namespace is optional and will default to the user account if not provided. |
 | `api_token` | `pydantic.types.SecretStr \| None` | No |  | Your Hugging Face user access token (will default to locally saved token if not provided) |
 
 ## Sample Configuration
diff --git a/docs/source/providers/inference/remote_hf_serverless.md b/docs/source/providers/inference/remote_hf_serverless.md
index 345af3e49..6764590b8 100644
--- a/docs/source/providers/inference/remote_hf_serverless.md
+++ b/docs/source/providers/inference/remote_hf_serverless.md
@@ -8,7 +8,7 @@ HuggingFace Inference API serverless provider for on-demand model inference.
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `huggingface_repo` | `<class 'str'>` | No | PydanticUndefined | The model ID of the model on the Hugging Face Hub (e.g. 'meta-llama/Meta-Llama-3.1-70B-Instruct') |
+| `huggingface_repo` | `<class 'str'>` | No |  | The model ID of the model on the Hugging Face Hub (e.g. 'meta-llama/Meta-Llama-3.1-70B-Instruct') |
 | `api_token` | `pydantic.types.SecretStr \| None` | No |  | Your Hugging Face user access token (will default to locally saved token if not provided) |
 
 ## Sample Configuration
diff --git a/docs/source/providers/inference/remote_tgi.md b/docs/source/providers/inference/remote_tgi.md
index 125984fab..104bb4aab 100644
--- a/docs/source/providers/inference/remote_tgi.md
+++ b/docs/source/providers/inference/remote_tgi.md
@@ -8,7 +8,7 @@ Text Generation Inference (TGI) provider for HuggingFace model serving.
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `url` | `<class 'str'>` | No | PydanticUndefined | The URL for the TGI serving endpoint |
+| `url` | `<class 'str'>` | No |  | The URL for the TGI serving endpoint |
 
 ## Sample Configuration
 
diff --git a/docs/source/providers/post_training/inline_huggingface.md b/docs/source/providers/post_training/inline_huggingface.md
index 800bae47a..8b10fe79c 100644
--- a/docs/source/providers/post_training/inline_huggingface.md
+++ b/docs/source/providers/post_training/inline_huggingface.md
@@ -27,7 +27,7 @@ HuggingFace-based post-training provider for fine-tuning models using the Huggin
 | `dpo_beta` | `<class 'float'>` | No | 0.1 |  |
 | `use_reference_model` | `<class 'bool'>` | No | True |  |
 | `dpo_loss_type` | `Literal['sigmoid', 'hinge', 'ipo', 'kto_pair'` | No | sigmoid |  |
-| `dpo_output_dir` | `<class 'str'>` | No | /var/folders/mj/t_stv1ys7637vqf2_b4yf67m0000gn/T/dpo_output_q24jwy0r |  |
+| `dpo_output_dir` | `<class 'str'>` | No |  |  |
 
 ## Sample Configuration
 
@@ -35,6 +35,7 @@ HuggingFace-based post-training provider for fine-tuning models using the Huggin
 checkpoint_format: huggingface
 distributed_backend: null
 device: cpu
+dpo_output_dir: ~/.llama/dummy/dpo_output
 
 ```
 
diff --git a/docs/source/providers/vector_io/inline_chromadb.md b/docs/source/providers/vector_io/inline_chromadb.md
index 679c82830..518e3f689 100644
--- a/docs/source/providers/vector_io/inline_chromadb.md
+++ b/docs/source/providers/vector_io/inline_chromadb.md
@@ -41,7 +41,7 @@ See [Chroma's documentation](https://docs.trychroma.com/docs/overview/introducti
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `db_path` | `<class 'str'>` | No | PydanticUndefined |  |
+| `db_path` | `<class 'str'>` | No |  |  |
 | `kvstore` | `utils.kvstore.config.RedisKVStoreConfig \| utils.kvstore.config.SqliteKVStoreConfig \| utils.kvstore.config.PostgresKVStoreConfig \| utils.kvstore.config.MongoDBKVStoreConfig` | No | sqlite | Config for KV store backend |
 
 ## Sample Configuration
diff --git a/docs/source/providers/vector_io/inline_milvus.md b/docs/source/providers/vector_io/inline_milvus.md
index 3b3aad3fc..33ea4d179 100644
--- a/docs/source/providers/vector_io/inline_milvus.md
+++ b/docs/source/providers/vector_io/inline_milvus.md
@@ -10,7 +10,7 @@ Please refer to the remote provider documentation.
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `db_path` | `<class 'str'>` | No | PydanticUndefined |  |
+| `db_path` | `<class 'str'>` | No |  |  |
 | `kvstore` | `utils.kvstore.config.RedisKVStoreConfig \| utils.kvstore.config.SqliteKVStoreConfig \| utils.kvstore.config.PostgresKVStoreConfig \| utils.kvstore.config.MongoDBKVStoreConfig` | No | sqlite | Config for KV store backend (SQLite only for now) |
 | `consistency_level` | `<class 'str'>` | No | Strong | The consistency level of the Milvus server |
 
diff --git a/docs/source/providers/vector_io/inline_qdrant.md b/docs/source/providers/vector_io/inline_qdrant.md
index e989a3554..b5072d220 100644
--- a/docs/source/providers/vector_io/inline_qdrant.md
+++ b/docs/source/providers/vector_io/inline_qdrant.md
@@ -50,7 +50,7 @@ See the [Qdrant documentation](https://qdrant.tech/documentation/) for more deta
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `path` | `<class 'str'>` | No | PydanticUndefined |  |
+| `path` | `<class 'str'>` | No |  |  |
 | `kvstore` | `utils.kvstore.config.RedisKVStoreConfig \| utils.kvstore.config.SqliteKVStoreConfig \| utils.kvstore.config.PostgresKVStoreConfig \| utils.kvstore.config.MongoDBKVStoreConfig` | No | sqlite |  |
 
 ## Sample Configuration
diff --git a/docs/source/providers/vector_io/inline_sqlite-vec.md b/docs/source/providers/vector_io/inline_sqlite-vec.md
index ae7c45b21..854bb9d08 100644
--- a/docs/source/providers/vector_io/inline_sqlite-vec.md
+++ b/docs/source/providers/vector_io/inline_sqlite-vec.md
@@ -205,7 +205,7 @@ See [sqlite-vec's GitHub repo](https://github.com/asg017/sqlite-vec/tree/main) f
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `db_path` | `<class 'str'>` | No | PydanticUndefined | Path to the SQLite database file |
+| `db_path` | `<class 'str'>` | No |  | Path to the SQLite database file |
 | `kvstore` | `utils.kvstore.config.RedisKVStoreConfig \| utils.kvstore.config.SqliteKVStoreConfig \| utils.kvstore.config.PostgresKVStoreConfig \| utils.kvstore.config.MongoDBKVStoreConfig` | No | sqlite | Config for KV store backend (SQLite only for now) |
 
 ## Sample Configuration
diff --git a/docs/source/providers/vector_io/inline_sqlite_vec.md b/docs/source/providers/vector_io/inline_sqlite_vec.md
index 7e14bb8bd..7ad8eb252 100644
--- a/docs/source/providers/vector_io/inline_sqlite_vec.md
+++ b/docs/source/providers/vector_io/inline_sqlite_vec.md
@@ -10,7 +10,7 @@ Please refer to the sqlite-vec provider documentation.
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `db_path` | `<class 'str'>` | No | PydanticUndefined | Path to the SQLite database file |
+| `db_path` | `<class 'str'>` | No |  | Path to the SQLite database file |
 | `kvstore` | `utils.kvstore.config.RedisKVStoreConfig \| utils.kvstore.config.SqliteKVStoreConfig \| utils.kvstore.config.PostgresKVStoreConfig \| utils.kvstore.config.MongoDBKVStoreConfig` | No | sqlite | Config for KV store backend (SQLite only for now) |
 
 ## Sample Configuration
diff --git a/docs/source/providers/vector_io/remote_chromadb.md b/docs/source/providers/vector_io/remote_chromadb.md
index 447ea6cd6..badfebe90 100644
--- a/docs/source/providers/vector_io/remote_chromadb.md
+++ b/docs/source/providers/vector_io/remote_chromadb.md
@@ -40,7 +40,7 @@ See [Chroma's documentation](https://docs.trychroma.com/docs/overview/introducti
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `url` | `str \| None` | No | PydanticUndefined |  |
+| `url` | `str \| None` | No |  |  |
 | `kvstore` | `utils.kvstore.config.RedisKVStoreConfig \| utils.kvstore.config.SqliteKVStoreConfig \| utils.kvstore.config.PostgresKVStoreConfig \| utils.kvstore.config.MongoDBKVStoreConfig` | No | sqlite | Config for KV store backend |
 
 ## Sample Configuration
diff --git a/docs/source/providers/vector_io/remote_milvus.md b/docs/source/providers/vector_io/remote_milvus.md
index 6734d8315..3646f4acc 100644
--- a/docs/source/providers/vector_io/remote_milvus.md
+++ b/docs/source/providers/vector_io/remote_milvus.md
@@ -111,8 +111,8 @@ For more details on TLS configuration, refer to the [TLS setup guide](https://mi
 
 | Field | Type | Required | Default | Description |
 |-------|------|----------|---------|-------------|
-| `uri` | `<class 'str'>` | No | PydanticUndefined | The URI of the Milvus server |
-| `token` | `str \| None` | No | PydanticUndefined | The token of the Milvus server |
+| `uri` | `<class 'str'>` | No |  | The URI of the Milvus server |
+| `token` | `str \| None` | No |  | The token of the Milvus server |
 | `consistency_level` | `<class 'str'>` | No | Strong | The consistency level of the Milvus server |
 | `kvstore` | `utils.kvstore.config.RedisKVStoreConfig \| utils.kvstore.config.SqliteKVStoreConfig \| utils.kvstore.config.PostgresKVStoreConfig \| utils.kvstore.config.MongoDBKVStoreConfig` | No | sqlite | Config for KV store backend |
 | `config` | `dict` | No | {} | This configuration allows additional fields to be passed through to the underlying Milvus client. See the [Milvus](https://milvus.io/docs/install-overview.md) documentation for more details about Milvus in general. |
diff --git a/llama_stack/distributions/ci-tests/run.yaml b/llama_stack/distributions/ci-tests/run.yaml
index becec81c6..188c66275 100644
--- a/llama_stack/distributions/ci-tests/run.yaml
+++ b/llama_stack/distributions/ci-tests/run.yaml
@@ -154,6 +154,7 @@ providers:
       checkpoint_format: huggingface
       distributed_backend: null
       device: cpu
+      dpo_output_dir: ~/.llama/distributions/ci-tests/dpo_output
   eval:
   - provider_id: meta-reference
     provider_type: inline::meta-reference
diff --git a/llama_stack/distributions/starter/run.yaml b/llama_stack/distributions/starter/run.yaml
index d56559ebc..8bd737686 100644
--- a/llama_stack/distributions/starter/run.yaml
+++ b/llama_stack/distributions/starter/run.yaml
@@ -154,6 +154,7 @@ providers:
       checkpoint_format: huggingface
       distributed_backend: null
       device: cpu
+      dpo_output_dir: ~/.llama/distributions/starter/dpo_output
   eval:
   - provider_id: meta-reference
     provider_type: inline::meta-reference
diff --git a/llama_stack/providers/inline/post_training/huggingface/config.py b/llama_stack/providers/inline/post_training/huggingface/config.py
index 07b76b3c5..04e286ff0 100644
--- a/llama_stack/providers/inline/post_training/huggingface/config.py
+++ b/llama_stack/providers/inline/post_training/huggingface/config.py
@@ -4,10 +4,9 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
-import tempfile
 from typing import Any, Literal
 
-from pydantic import BaseModel, Field
+from pydantic import BaseModel
 
 
 class HuggingFacePostTrainingConfig(BaseModel):
@@ -72,8 +71,13 @@ class HuggingFacePostTrainingConfig(BaseModel):
     dpo_beta: float = 0.1
     use_reference_model: bool = True
     dpo_loss_type: Literal["sigmoid", "hinge", "ipo", "kto_pair"] = "sigmoid"
-    dpo_output_dir: str = Field(default_factory=lambda: tempfile.mkdtemp(prefix="dpo_output_"))
+    dpo_output_dir: str
 
     @classmethod
     def sample_run_config(cls, __distro_dir__: str, **kwargs: Any) -> dict[str, Any]:
-        return {"checkpoint_format": "huggingface", "distributed_backend": None, "device": "cpu"}
+        return {
+            "checkpoint_format": "huggingface",
+            "distributed_backend": None,
+            "device": "cpu",
+            "dpo_output_dir": __distro_dir__ + "/dpo_output",
+        }
diff --git a/scripts/provider_codegen.py b/scripts/provider_codegen.py
index f770c264d..8f5fad8d4 100755
--- a/scripts/provider_codegen.py
+++ b/scripts/provider_codegen.py
@@ -9,6 +9,7 @@ import subprocess
 import sys
 from pathlib import Path
 from typing import Any
+from pydantic_core import PydanticUndefined
 
 from rich.progress import Progress, SpinnerColumn, TextColumn
 
@@ -59,6 +60,8 @@ def get_config_class_info(config_class_path: str) -> dict[str, Any]:
         if hasattr(config_class, "model_fields"):
             for field_name, field in config_class.model_fields.items():
                 field_type = str(field.annotation) if field.annotation else "Any"
+
+                # this string replace is ridiculous
                 field_type = field_type.replace("typing.", "").replace("Optional[", "").replace("]", "")
                 field_type = field_type.replace("Annotated[", "").replace("FieldInfo(", "").replace(")", "")
                 field_type = field_type.replace("llama_stack.apis.inference.inference.", "")
@@ -77,7 +80,7 @@ def get_config_class_info(config_class_path: str) -> dict[str, Any]:
                                 default_value = f"~/.llama/{path_part}"
                     except Exception:
                         default_value = ""
-                elif field.default is None:
+                elif field.default is None or field.default is PydanticUndefined:
                     default_value = ""
 
                 field_info = {