diff --git a/python/packages/autogen-ext/src/autogen_ext/models/anthropic/__init__.py b/python/packages/autogen-ext/src/autogen_ext/models/anthropic/__init__.py
index f31e7b1c0b72..c49421d37aec 100644
--- a/python/packages/autogen-ext/src/autogen_ext/models/anthropic/__init__.py
+++ b/python/packages/autogen-ext/src/autogen_ext/models/anthropic/__init__.py
@@ -1,8 +1,16 @@
-from ._anthropic_client import (
-    AnthropicBedrockChatCompletionClient,
-    AnthropicChatCompletionClient,
-    BaseAnthropicChatCompletionClient,
-)
+try:
+    from ._anthropic_client import (
+        AnthropicBedrockChatCompletionClient,
+        AnthropicChatCompletionClient,
+        BaseAnthropicChatCompletionClient,
+    )
+except ImportError as e:
+    raise ImportError(
+        "Dependencies for Anthropic not found. "
+        "Please install the anthropic package: "
+        "pip install autogen-ext[anthropic]"
+    ) from e
+
 from .config import (
     AnthropicBedrockClientConfiguration,
     AnthropicBedrockClientConfigurationConfigModel,
diff --git a/python/packages/autogen-ext/src/autogen_ext/models/ollama/__init__.py b/python/packages/autogen-ext/src/autogen_ext/models/ollama/__init__.py
index 1cfcb60cd128..6c55f7e9204c 100644
--- a/python/packages/autogen-ext/src/autogen_ext/models/ollama/__init__.py
+++ b/python/packages/autogen-ext/src/autogen_ext/models/ollama/__init__.py
@@ -1,4 +1,10 @@
-from ._ollama_client import OllamaChatCompletionClient
+try:
+    from ._ollama_client import OllamaChatCompletionClient
+except ImportError as e:
+    raise ImportError(
+        "Dependencies for Ollama not found. " "Please install the ollama package: " "pip install autogen-ext[ollama]"
+    ) from e
+
 from .config import (
     BaseOllamaClientConfigurationConfigModel,
     CreateArgumentsConfigModel,
diff --git a/python/packages/autogen-ext/src/autogen_ext/models/openai/__init__.py b/python/packages/autogen-ext/src/autogen_ext/models/openai/__init__.py
index 2241f663af26..eab9cf1e05f5 100644
--- a/python/packages/autogen-ext/src/autogen_ext/models/openai/__init__.py
+++ b/python/packages/autogen-ext/src/autogen_ext/models/openai/__init__.py
@@ -1,10 +1,17 @@
 from . import _message_transform
-from ._openai_client import (
-    AZURE_OPENAI_USER_AGENT,
-    AzureOpenAIChatCompletionClient,
-    BaseOpenAIChatCompletionClient,
-    OpenAIChatCompletionClient,
-)
+
+try:
+    from ._openai_client import (
+        AZURE_OPENAI_USER_AGENT,
+        AzureOpenAIChatCompletionClient,
+        BaseOpenAIChatCompletionClient,
+        OpenAIChatCompletionClient,
+    )
+except ImportError as e:
+    raise ImportError(
+        "Dependencies for OpenAI not found. " "Please install the openai package: " "pip install autogen-ext[openai]"
+    ) from e
+
 from .config import (
     AzureOpenAIClientConfigurationConfigModel,
     BaseOpenAIClientConfigurationConfigModel,