diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index 636022182e3..2cf6c205e84 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -45025,8 +45025,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45038,8 +45037,10 @@
         "supports_function_calling": true,
         "supports_native_streaming": true,
         "supports_prompt_caching": true,
+        "supports_adaptive_thinking": true,
         "supports_reasoning": true,
         "supports_response_schema": true,
+        "supports_sampling_params": false,
         "supports_system_messages": true,
         "supports_tool_choice": true,
         "supports_vision": true
@@ -45057,8 +45058,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45089,8 +45089,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45121,8 +45120,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45134,8 +45132,10 @@
         "supports_function_calling": true,
         "supports_native_streaming": true,
         "supports_prompt_caching": true,
+        "supports_adaptive_thinking": true,
         "supports_reasoning": true,
         "supports_response_schema": true,
+        "supports_sampling_params": false,
         "supports_system_messages": true,
         "supports_tool_choice": true,
         "supports_vision": true
@@ -45153,8 +45153,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45166,8 +45165,10 @@
         "supports_function_calling": true,
         "supports_native_streaming": true,
         "supports_prompt_caching": true,
+        "supports_adaptive_thinking": true,
         "supports_reasoning": true,
         "supports_response_schema": true,
+        "supports_sampling_params": false,
         "supports_system_messages": true,
         "supports_tool_choice": true,
         "supports_vision": true
@@ -45185,8 +45186,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45217,8 +45217,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45230,8 +45229,10 @@
         "supports_function_calling": true,
         "supports_native_streaming": true,
         "supports_prompt_caching": true,
+        "supports_adaptive_thinking": true,
         "supports_reasoning": true,
         "supports_response_schema": true,
+        "supports_sampling_params": false,
         "supports_system_messages": true,
         "supports_tool_choice": true,
         "supports_vision": true
diff --git a/model_prices_and_context_window.json b/model_prices_and_context_window.json
index b9b80519be5..821670ffd74 100644
--- a/model_prices_and_context_window.json
+++ b/model_prices_and_context_window.json
@@ -45258,8 +45258,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45271,8 +45270,10 @@
         "supports_function_calling": true,
         "supports_native_streaming": true,
         "supports_prompt_caching": true,
+        "supports_adaptive_thinking": true,
         "supports_reasoning": true,
         "supports_response_schema": true,
+        "supports_sampling_params": false,
         "supports_system_messages": true,
         "supports_tool_choice": true,
         "supports_vision": true
@@ -45290,8 +45291,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45322,8 +45322,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45354,8 +45353,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45367,8 +45365,10 @@
         "supports_function_calling": true,
         "supports_native_streaming": true,
         "supports_prompt_caching": true,
+        "supports_adaptive_thinking": true,
         "supports_reasoning": true,
         "supports_response_schema": true,
+        "supports_sampling_params": false,
         "supports_system_messages": true,
         "supports_tool_choice": true,
         "supports_vision": true
@@ -45386,8 +45386,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45399,8 +45398,10 @@
         "supports_function_calling": true,
         "supports_native_streaming": true,
         "supports_prompt_caching": true,
+        "supports_adaptive_thinking": true,
         "supports_reasoning": true,
         "supports_response_schema": true,
+        "supports_sampling_params": false,
         "supports_system_messages": true,
         "supports_tool_choice": true,
         "supports_vision": true
@@ -45418,8 +45419,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45450,8 +45450,7 @@
         "source": "https://api.tokenlab.sh/v1/models",
         "supported_endpoints": [
             "/v1/chat/completions",
-            "/v1/responses",
-            "/v1/messages"
+            "/v1/responses"
         ],
         "supported_modalities": [
             "text",
@@ -45463,8 +45462,10 @@
         "supports_function_calling": true,
         "supports_native_streaming": true,
         "supports_prompt_caching": true,
+        "supports_adaptive_thinking": true,
         "supports_reasoning": true,
         "supports_response_schema": true,
+        "supports_sampling_params": false,
         "supports_system_messages": true,
         "supports_tool_choice": true,
         "supports_vision": true
diff --git a/tests/test_litellm/llms/openai_like/test_tokenlab_provider.py b/tests/test_litellm/llms/openai_like/test_tokenlab_provider.py
index 06894718198..b459f9ba119 100644
--- a/tests/test_litellm/llms/openai_like/test_tokenlab_provider.py
+++ b/tests/test_litellm/llms/openai_like/test_tokenlab_provider.py
@@ -147,9 +147,15 @@ class TestTokenLabCostMap:
             assert info["litellm_provider"] == "tokenlab"
             assert info["mode"] in {"chat", "embedding"}
 
-    def test_claude_models_advertise_messages_endpoint(self):
+    def test_claude_model_cost_map_keeps_schema_supported_endpoints(self):
+        from litellm.llms.openai_like.json_loader import JSONProviderRegistry
+
         endpoints = litellm.model_cost["tokenlab/claude-opus-4-8"]["supported_endpoints"]
-        assert "/v1/messages" in endpoints
+        assert endpoints == ["/v1/chat/completions", "/v1/responses"]
+
+        provider_config = JSONProviderRegistry.get("tokenlab")
+        assert provider_config is not None
+        assert "/v1/messages" in provider_config.supported_endpoints
 
     def test_chat_cost_is_wired(self):
         prompt_cost, completion_cost = litellm.cost_per_token(