diff --git a/homeassistant/components/anthropic/__init__.py b/homeassistant/components/anthropic/__init__.py
index dae88bbcb15..ac4e3522c26 100644
--- a/homeassistant/components/anthropic/__init__.py
+++ b/homeassistant/components/anthropic/__init__.py
@@ -17,7 +17,7 @@ from homeassistant.helpers import (
 )
 from homeassistant.helpers.typing import ConfigType
 
-from .const import CONF_CHAT_MODEL, DEFAULT, DEFAULT_CONVERSATION_NAME, DOMAIN, LOGGER
+from .const import DEFAULT_CONVERSATION_NAME, DOMAIN, LOGGER
 
 PLATFORMS = (Platform.AI_TASK, Platform.CONVERSATION)
 CONFIG_SCHEMA = cv.config_entry_only_config_schema(DOMAIN)
@@ -37,14 +37,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: AnthropicConfigEntry) ->
         partial(anthropic.AsyncAnthropic, api_key=entry.data[CONF_API_KEY])
     )
     try:
-        # Use model from first conversation subentry for validation
-        subentries = list(entry.subentries.values())
-        if subentries:
-            model_id = subentries[0].data.get(CONF_CHAT_MODEL, DEFAULT[CONF_CHAT_MODEL])
-        else:
-            model_id = DEFAULT[CONF_CHAT_MODEL]
-        model = await client.models.retrieve(model_id=model_id, timeout=10.0)
-        LOGGER.debug("Anthropic model: %s", model.display_name)
+        await client.models.list(timeout=10.0)
     except anthropic.AuthenticationError as err:
         LOGGER.error("Invalid API key: %s", err)
         return False
diff --git a/tests/components/anthropic/conftest.py b/tests/components/anthropic/conftest.py
index 207e1d410e6..5b40b1d0c38 100644
--- a/tests/components/anthropic/conftest.py
+++ b/tests/components/anthropic/conftest.py
@@ -20,8 +20,8 @@ from anthropic.types import (
 from anthropic.types.raw_message_delta_event import Delta
 import pytest
 
-from homeassistant.components.anthropic import CONF_CHAT_MODEL
 from homeassistant.components.anthropic.const import (
+    CONF_CHAT_MODEL,
     CONF_WEB_SEARCH,
     CONF_WEB_SEARCH_CITY,
     CONF_WEB_SEARCH_COUNTRY,
@@ -184,13 +184,10 @@ async def mock_init_component(
             ),
         ]
     )
-    with (
-        patch("anthropic.resources.models.AsyncModels.retrieve"),
-        patch(
-            "anthropic.resources.models.AsyncModels.list",
-            new_callable=AsyncMock,
-            return_value=model_list,
-        ),
+    with patch(
+        "anthropic.resources.models.AsyncModels.list",
+        new_callable=AsyncMock,
+        return_value=model_list,
     ):
         assert await async_setup_component(hass, "anthropic", {})
         await hass.async_block_till_done()
diff --git a/tests/components/anthropic/test_conversation.py b/tests/components/anthropic/test_conversation.py
index b259b988424..cf5a3d17c82 100644
--- a/tests/components/anthropic/test_conversation.py
+++ b/tests/components/anthropic/test_conversation.py
@@ -99,7 +99,7 @@ async def test_template_error(
             "prompt": "talk like a {% if True %}smarthome{% else %}pirate please.",
         },
     )
-    with patch("anthropic.resources.models.AsyncModels.retrieve"):
+    with patch("anthropic.resources.models.AsyncModels.list", new_callable=AsyncMock):
         await hass.config_entries.async_setup(mock_config_entry.entry_id)
         await hass.async_block_till_done()
 
@@ -138,7 +138,7 @@ async def test_template_variables(
         create_content_block(0, ["Okay, let", " me take care of that for you", "."])
     ]
     with (
-        patch("anthropic.resources.models.AsyncModels.retrieve"),
+        patch("anthropic.resources.models.AsyncModels.list", new_callable=AsyncMock),
         patch("homeassistant.auth.AuthManager.async_get_user", return_value=mock_user),
     ):
         await hass.config_entries.async_setup(mock_config_entry.entry_id)
diff --git a/tests/components/anthropic/test_init.py b/tests/components/anthropic/test_init.py
index a97a3b7a378..10626d24fc6 100644
--- a/tests/components/anthropic/test_init.py
+++ b/tests/components/anthropic/test_init.py
@@ -62,7 +62,7 @@ async def test_init_error(
 ) -> None:
     """Test initialization errors."""
     with patch(
-        "anthropic.resources.models.AsyncModels.retrieve",
+        "anthropic.resources.models.AsyncModels.list",
         side_effect=side_effect,
     ):
         assert await async_setup_component(hass, "anthropic", {})