diff --git a/singlestoredb/ai/chat.py b/singlestoredb/ai/chat.py
index cc94b699..4878c96c 100644
--- a/singlestoredb/ai/chat.py
+++ b/singlestoredb/ai/chat.py
@@ -1,5 +1,4 @@
 import os
-from collections.abc import Generator
 from typing import Any
 from typing import Callable
 from typing import Optional
@@ -33,36 +32,16 @@
 
 def SingleStoreChatFactory(
     model_name: str,
-    api_key: Optional[Union[Optional[str], Callable[[], Optional[str]]]] = None,
+    api_key: Optional[str] = None,
     streaming: bool = True,
     http_client: Optional[httpx.Client] = None,
-    obo_token: Optional[Union[Optional[str], Callable[[], Optional[str]]]] = None,
     obo_token_getter: Optional[Callable[[], Optional[str]]] = None,
     base_url: Optional[str] = None,
     hosting_platform: Optional[str] = None,
-    timeout: Optional[float] = None,
     **kwargs: Any,
 ) -> Union[ChatOpenAI, ChatBedrockConverse]:
     """Return a chat model instance (ChatOpenAI or ChatBedrockConverse).
     """
-    # Handle api_key and obo_token as callable functions
-    if callable(api_key):
-        api_key_getter_fn = api_key
-    else:
-        def api_key_getter_fn() -> Optional[str]:
-            if api_key is None:
-                return os.environ.get('SINGLESTOREDB_USER_TOKEN')
-            return api_key
-
-    if obo_token_getter is not None:
-        obo_token_getter_fn = obo_token_getter
-    else:
-        if callable(obo_token):
-            obo_token_getter_fn = obo_token
-        else:
-            def obo_token_getter_fn() -> Optional[str]:
-                return obo_token
-
     # handle model info
     if base_url is None:
         base_url = os.environ.get('SINGLESTOREDB_INFERENCE_API_BASE_URL')
@@ -104,10 +83,6 @@ def obo_token_getter_fn() -> Optional[str]:
         elif isinstance(t, (int, float)):
             connect_timeout = float(t)
             read_timeout = float(t)
-    if timeout is not None:
-        connect_timeout = timeout
-        read_timeout = timeout
-        t = httpx.Timeout(timeout)
 
     if info.hosting_platform == 'Amazon':
         # Instantiate Bedrock client
@@ -132,12 +107,12 @@ def obo_token_getter_fn() -> Optional[str]:
 
         def _inject_headers(request: Any, **_ignored: Any) -> None:
             """Inject dynamic auth/OBO headers prior to Bedrock sending."""
-            if api_key_getter_fn is not None:
-                token_val = api_key_getter_fn()
-                if token_val:
-                    request.headers['Authorization'] = f'Bearer {token_val}'
-            if obo_token_getter_fn is not None:
-                obo_val = obo_token_getter_fn()
+            token_env_val = os.environ.get('SINGLESTOREDB_USER_TOKEN')
+            token_val = api_key if api_key is not None else token_env_val
+            if token_val:
+                request.headers['Authorization'] = f'Bearer {token_val}'
+            if obo_token_getter is not None:
+                obo_val = obo_token_getter()
                 if obo_val:
                     request.headers['X-S2-OBO'] = obo_val
             request.headers.pop('X-Amz-Date', None)
@@ -172,39 +147,18 @@ def _inject_headers(request: Any, **_ignored: Any) -> None:
             **kwargs,
         )
 
-    class OpenAIAuth(httpx.Auth):
-        def auth_flow(
-            self, request: httpx.Request,
-        ) -> Generator[httpx.Request, None, None]:
-            if api_key_getter_fn is not None:
-                token_val = api_key_getter_fn()
-                if token_val:
-                    request.headers['Authorization'] = f'Bearer {token_val}'
-            if obo_token_getter_fn is not None:
-                obo_val = obo_token_getter_fn()
-                if obo_val:
-                    request.headers['X-S2-OBO'] = obo_val
-            yield request
-
-    if t is not None:
-        http_client = httpx.Client(
-            timeout=t,
-            auth=OpenAIAuth(),
-        )
-    else:
-        http_client = httpx.Client(
-            timeout=httpx.Timeout(timeout=600, connect=5.0),  # default OpenAI timeout
-            auth=OpenAIAuth(),
-        )
-
     # OpenAI / Azure OpenAI path
+    token_env = os.environ.get('SINGLESTOREDB_USER_TOKEN')
+    token = api_key if api_key is not None else token_env
+
     openai_kwargs = dict(
         base_url=info.connection_url,
-        api_key='placeholder',
+        api_key=token,
         model=model_name,
         streaming=streaming,
     )
-    openai_kwargs['http_client'] = http_client
+    if http_client is not None:
+        openai_kwargs['http_client'] = http_client
     return ChatOpenAI(
         **openai_kwargs,
         **kwargs,
diff --git a/singlestoredb/ai/embeddings.py b/singlestoredb/ai/embeddings.py
index e85f26a7..fe23331c 100644
--- a/singlestoredb/ai/embeddings.py
+++ b/singlestoredb/ai/embeddings.py
@@ -1,5 +1,4 @@
 import os
-from collections.abc import Generator
 from typing import Any
 from typing import Callable
 from typing import Optional
@@ -33,35 +32,15 @@
 
 def SingleStoreEmbeddingsFactory(
     model_name: str,
-    api_key: Optional[Union[Optional[str], Callable[[], Optional[str]]]] = None,
+    api_key: Optional[str] = None,
     http_client: Optional[httpx.Client] = None,
-    obo_token: Optional[Union[Optional[str], Callable[[], Optional[str]]]] = None,
     obo_token_getter: Optional[Callable[[], Optional[str]]] = None,
     base_url: Optional[str] = None,
     hosting_platform: Optional[str] = None,
-    timeout: Optional[float] = None,
     **kwargs: Any,
 ) -> Union[OpenAIEmbeddings, BedrockEmbeddings]:
     """Return an embeddings model instance (OpenAIEmbeddings or BedrockEmbeddings).
     """
-    # Handle api_key and obo_token as callable functions
-    if callable(api_key):
-        api_key_getter_fn = api_key
-    else:
-        def api_key_getter_fn() -> Optional[str]:
-            if api_key is None:
-                return os.environ.get('SINGLESTOREDB_USER_TOKEN')
-            return api_key
-
-    if obo_token_getter is not None:
-        obo_token_getter_fn = obo_token_getter
-    else:
-        if callable(obo_token):
-            obo_token_getter_fn = obo_token
-        else:
-            def obo_token_getter_fn() -> Optional[str]:
-                return obo_token
-
     # handle model info
     if base_url is None:
         base_url = os.environ.get('SINGLESTOREDB_INFERENCE_API_BASE_URL')
@@ -103,10 +82,6 @@ def obo_token_getter_fn() -> Optional[str]:
         elif isinstance(t, (int, float)):
             connect_timeout = float(t)
             read_timeout = float(t)
-    if timeout is not None:
-        connect_timeout = timeout
-        read_timeout = timeout
-        t = httpx.Timeout(timeout)
 
     if info.hosting_platform == 'Amazon':
         # Instantiate Bedrock client
@@ -131,12 +106,12 @@ def obo_token_getter_fn() -> Optional[str]:
 
         def _inject_headers(request: Any, **_ignored: Any) -> None:
             """Inject dynamic auth/OBO headers prior to Bedrock sending."""
-            if api_key_getter_fn is not None:
-                token_val = api_key_getter_fn()
-                if token_val:
-                    request.headers['Authorization'] = f'Bearer {token_val}'
-            if obo_token_getter_fn is not None:
-                obo_val = obo_token_getter_fn()
+            token_env_val = os.environ.get('SINGLESTOREDB_USER_TOKEN')
+            token_val = api_key if api_key is not None else token_env_val
+            if token_val:
+                request.headers['Authorization'] = f'Bearer {token_val}'
+            if obo_token_getter is not None:
+                obo_val = obo_token_getter()
                 if obo_val:
                     request.headers['X-S2-OBO'] = obo_val
             request.headers.pop('X-Amz-Date', None)
@@ -162,38 +137,17 @@ def _inject_headers(request: Any, **_ignored: Any) -> None:
             **kwargs,
         )
 
-    class OpenAIAuth(httpx.Auth):
-        def auth_flow(
-            self, request: httpx.Request,
-        ) -> Generator[httpx.Request, None, None]:
-            if api_key_getter_fn is not None:
-                token_val = api_key_getter_fn()
-                if token_val:
-                    request.headers['Authorization'] = f'Bearer {token_val}'
-            if obo_token_getter_fn is not None:
-                obo_val = obo_token_getter_fn()
-                if obo_val:
-                    request.headers['X-S2-OBO'] = obo_val
-            yield request
-
-    if t is not None:
-        http_client = httpx.Client(
-            timeout=t,
-            auth=OpenAIAuth(),
-        )
-    else:
-        http_client = httpx.Client(
-            timeout=httpx.Timeout(timeout=600, connect=5.0),  # default OpenAI timeout
-            auth=OpenAIAuth(),
-        )
-
     # OpenAI / Azure OpenAI path
+    token_env = os.environ.get('SINGLESTOREDB_USER_TOKEN')
+    token = api_key if api_key is not None else token_env
+
     openai_kwargs = dict(
         base_url=info.connection_url,
-        api_key='placeholder',
+        api_key=token,
         model=model_name,
     )
-    openai_kwargs['http_client'] = http_client
+    if http_client is not None:
+        openai_kwargs['http_client'] = http_client
     return OpenAIEmbeddings(
         **openai_kwargs,
         **kwargs,