diff --git a/litellm/constants.py b/litellm/constants.py
index aeb74a65839..5cc41bd7954 100644
--- a/litellm/constants.py
+++ b/litellm/constants.py
@@ -1123,6 +1123,7 @@ BEDROCK_CONVERSE_MODELS = [
     "anthropic.claude-haiku-4-5-20251001-v1:0",
     "anthropic.claude-sonnet-4-5-20250929-v1:0",
     "anthropic.claude-fable-5",
+    "anthropic.claude-sonnet-5",
     "anthropic.claude-opus-4-8",
     "anthropic.claude-opus-4-7",
     "anthropic.claude-opus-4-6-v1:0",
diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index 21132db93cb..5bd70690d48 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -1671,6 +1671,204 @@
         "supports_max_reasoning_effort": true,
         "supports_minimal_reasoning_effort": true
     },
+    "anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "global.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "us.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_creation_input_token_cost_above_1hr": 6.6e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+        "input_cost_per_token": 3.3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.65e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "eu.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_creation_input_token_cost_above_1hr": 6.6e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+        "input_cost_per_token": 3.3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.65e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "au.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_creation_input_token_cost_above_1hr": 6.6e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+        "input_cost_per_token": 3.3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.65e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "jp.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_creation_input_token_cost_above_1hr": 6.6e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+        "input_cost_per_token": 3.3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.65e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
     "anthropic.claude-sonnet-4-6": {
         "supports_adaptive_thinking": true,
         "cache_creation_input_token_cost": 3.75e-06,
@@ -2511,6 +2709,37 @@
         "supports_tool_choice": true,
         "supports_vision": true
     },
+    "azure_ai/claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "azure_ai",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true
+    },
     "azure_ai/claude-sonnet-4-6": {
         "supports_adaptive_thinking": true,
         "cache_creation_input_token_cost": 3.75e-06,
@@ -10245,6 +10474,40 @@
         "supports_vision": true,
         "supports_web_search": true
     },
+    "claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "anthropic",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_max_reasoning_effort": true,
+        "provider_specific_entry": {
+            "us": 1.1
+        },
+        "supports_output_config": true
+    },
     "claude-sonnet-4-6": {
         "cache_creation_input_token_cost": 3.75e-06,
         "cache_creation_input_token_cost_above_1hr": 6e-06,
@@ -34944,6 +35207,37 @@
         "supports_tool_choice": true,
         "supports_vision": true
     },
+    "vertex_ai/claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "vertex_ai-anthropic_models",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true
+    },
     "vertex_ai/claude-sonnet-4-6": {
         "supports_adaptive_thinking": true,
         "cache_creation_input_token_cost": 3.75e-06,
@@ -42381,6 +42675,37 @@
             "search_context_size_high": 0.035
         }
     },
+    "vertex_ai/claude-sonnet-5@default": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "vertex_ai-anthropic_models",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true
+    },
     "vertex_ai/claude-sonnet-4-6@default": {
         "supports_adaptive_thinking": true,
         "cache_creation_input_token_cost": 3.75e-06,
diff --git a/litellm/setup_wizard.py b/litellm/setup_wizard.py
index b43590079fa..10b4fb30f22 100644
--- a/litellm/setup_wizard.py
+++ b/litellm/setup_wizard.py
@@ -58,6 +58,7 @@ PROVIDERS: List[Dict] = [
         "test_model": "claude-haiku-4-5-20251001",
         "models": [
             "claude-fable-5",
+            "claude-sonnet-5",
             "claude-opus-4-8",
             "claude-opus-4-7",
             "claude-opus-4-6",
diff --git a/model_prices_and_context_window.json b/model_prices_and_context_window.json
index 73cefeb7c77..5fc431d721b 100644
--- a/model_prices_and_context_window.json
+++ b/model_prices_and_context_window.json
@@ -1671,6 +1671,204 @@
         "supports_max_reasoning_effort": true,
         "supports_minimal_reasoning_effort": true
     },
+    "anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "global.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "us.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_creation_input_token_cost_above_1hr": 6.6e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+        "input_cost_per_token": 3.3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.65e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "eu.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_creation_input_token_cost_above_1hr": 6.6e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+        "input_cost_per_token": 3.3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.65e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "au.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_creation_input_token_cost_above_1hr": 6.6e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+        "input_cost_per_token": 3.3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.65e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
+    "jp.anthropic.claude-sonnet-5": {
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_creation_input_token_cost_above_1hr": 6.6e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+        "input_cost_per_token": 3.3e-06,
+        "litellm_provider": "bedrock_converse",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.65e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_native_structured_output": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true,
+        "bedrock_output_config_effort_ceiling": "xhigh"
+    },
     "anthropic.claude-sonnet-4-6": {
         "supports_adaptive_thinking": true,
         "cache_creation_input_token_cost": 3.75e-06,
@@ -2511,6 +2709,37 @@
         "supports_tool_choice": true,
         "supports_vision": true
     },
+    "azure_ai/claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "azure_ai",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true
+    },
     "azure_ai/claude-sonnet-4-6": {
         "supports_adaptive_thinking": true,
         "cache_creation_input_token_cost": 3.75e-06,
@@ -10245,6 +10474,40 @@
         "supports_vision": true,
         "supports_web_search": true
     },
+    "claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "anthropic",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_max_reasoning_effort": true,
+        "provider_specific_entry": {
+            "us": 1.1
+        },
+        "supports_output_config": true
+    },
     "claude-sonnet-4-6": {
         "cache_creation_input_token_cost": 3.75e-06,
         "cache_creation_input_token_cost_above_1hr": 6e-06,
@@ -35121,6 +35384,37 @@
         "supports_tool_choice": true,
         "supports_vision": true
     },
+    "vertex_ai/claude-sonnet-5": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "vertex_ai-anthropic_models",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true
+    },
     "vertex_ai/claude-sonnet-4-6": {
         "supports_adaptive_thinking": true,
         "cache_creation_input_token_cost": 3.75e-06,
@@ -42616,6 +42910,37 @@
             "search_context_size_high": 0.035
         }
     },
+    "vertex_ai/claude-sonnet-5@default": {
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_creation_input_token_cost_above_1hr": 6e-06,
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "vertex_ai-anthropic_models",
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-05,
+        "search_context_cost_per_query": {
+            "search_context_size_high": 0.01,
+            "search_context_size_low": 0.01,
+            "search_context_size_medium": 0.01
+        },
+        "supports_adaptive_thinking": true,
+        "supports_assistant_prefill": false,
+        "supports_computer_use": true,
+        "supports_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_sampling_params": false,
+        "supports_tool_choice": true,
+        "supports_vision": true,
+        "supports_xhigh_reasoning_effort": true,
+        "supports_max_reasoning_effort": true,
+        "supports_output_config": true
+    },
     "vertex_ai/claude-sonnet-4-6@default": {
         "supports_adaptive_thinking": true,
         "cache_creation_input_token_cost": 3.75e-06,
diff --git a/tests/llm_translation/reasoning_effort_grid/grid_spec.py b/tests/llm_translation/reasoning_effort_grid/grid_spec.py
index 1bb468d15ad..762606bb3a0 100644
--- a/tests/llm_translation/reasoning_effort_grid/grid_spec.py
+++ b/tests/llm_translation/reasoning_effort_grid/grid_spec.py
@@ -181,6 +181,13 @@ ANTHROPIC_DIRECT_MODELS: Tuple[ModelEntry, ...] = (
         required_env=_ANTHROPIC_REQ,
         caps=_CAPS_XHIGH_MAX,
     ),
+    ModelEntry(
+        alias="claude-sonnet-5",
+        model="anthropic/claude-sonnet-5",
+        mode="adaptive",
+        required_env=_ANTHROPIC_REQ,
+        caps=_CAPS_XHIGH_MAX,
+    ),
     ModelEntry(
         alias="claude-sonnet-4-6",
         model="anthropic/claude-sonnet-4-6",
diff --git a/tests/test_litellm/test_claude_sonnet_5_config.py b/tests/test_litellm/test_claude_sonnet_5_config.py
new file mode 100644
index 00000000000..88a06aea95f
--- /dev/null
+++ b/tests/test_litellm/test_claude_sonnet_5_config.py
@@ -0,0 +1,174 @@
+"""
+Validate Claude Sonnet 5 model configuration entries.
+
+Sonnet 5 ships with the gen-5 adaptive-thinking profile (adaptive thinking
+always on, no extended thinking, ``effort`` defaults to ``high``), so it must
+mirror the sampling-param and prefill restrictions that Fable 5 / Opus 4.8 carry
+rather than the older Sonnet 4.6 behavior. The cost-map entries are also what
+populate ``litellm.anthropic_models`` at import, which is what lets a bare
+``claude-sonnet-5`` name resolve to the ``anthropic`` provider (and match an
+``anthropic/*`` wildcard deployment).
+"""
+
+import json
+import os
+
+import pytest
+
+import litellm
+from litellm.constants import BEDROCK_CONVERSE_MODELS
+from litellm.litellm_core_utils.get_model_cost_map import GetModelCostMap
+
+REPO_ROOT = os.path.join(os.path.dirname(__file__), "../..")
+
+ALL_SONNET_5_VARIANTS = (
+    "claude-sonnet-5",
+    "anthropic.claude-sonnet-5",
+    "global.anthropic.claude-sonnet-5",
+    "us.anthropic.claude-sonnet-5",
+    "eu.anthropic.claude-sonnet-5",
+    "au.anthropic.claude-sonnet-5",
+    "jp.anthropic.claude-sonnet-5",
+    "vertex_ai/claude-sonnet-5",
+    "vertex_ai/claude-sonnet-5@default",
+    "azure_ai/claude-sonnet-5",
+)
+
+
+def _load_root_cost_map() -> dict:
+    json_path = os.path.join(REPO_ROOT, "model_prices_and_context_window.json")
+    with open(json_path) as f:
+        return json.load(f)
+
+
+@pytest.fixture
+def local_model_cost_map(monkeypatch):
+    """Force the bundled backup cost map so assertions don't depend on the
+    network-fetched ``main`` copy (which lags this branch until merge)."""
+    original_model_cost = litellm.model_cost
+    monkeypatch.setenv("LITELLM_LOCAL_MODEL_COST_MAP", "True")
+    litellm.model_cost = litellm.get_model_cost_map(url="")
+    litellm.get_model_info.cache_clear()
+    try:
+        yield
+    finally:
+        litellm.model_cost = original_model_cost
+        litellm.get_model_info.cache_clear()
+
+
+def test_sonnet_5_pricing_and_capabilities():
+    model_data = _load_root_cost_map()
+
+    expected_providers = {
+        "claude-sonnet-5": "anthropic",
+        "anthropic.claude-sonnet-5": "bedrock_converse",
+        "vertex_ai/claude-sonnet-5": "vertex_ai-anthropic_models",
+        "azure_ai/claude-sonnet-5": "azure_ai",
+    }
+
+    for model_name, provider in expected_providers.items():
+        assert model_name in model_data, f"Missing model entry: {model_name}"
+        info = model_data[model_name]
+
+        assert info["litellm_provider"] == provider
+        assert info["mode"] == "chat"
+        assert info["max_input_tokens"] == 1000000
+        assert info["max_output_tokens"] == 128000
+        assert info["max_tokens"] == 128000
+
+        # Standard Sonnet pricing: $3 / $15 per MTok, with the 1.25x cache-write
+        # and 0.1x cache-read multipliers.
+        assert info["input_cost_per_token"] == 3e-06
+        assert info["output_cost_per_token"] == 1.5e-05
+        assert info["cache_creation_input_token_cost"] == 3.75e-06
+        assert info["cache_read_input_token_cost"] == 3e-07
+
+        # gen-5 adaptive-thinking profile: effort-driven, no sampling params, no
+        # assistant prefill.
+        assert info["supports_adaptive_thinking"] is True
+        assert info["supports_reasoning"] is True
+        assert info["supports_sampling_params"] is False
+        assert info["supports_assistant_prefill"] is False
+
+        assert info["supports_function_calling"] is True
+        assert info["supports_prompt_caching"] is True
+        assert info["supports_tool_choice"] is True
+        assert info["supports_vision"] is True
+
+
+def test_sonnet_5_bedrock_regional_pricing():
+    """Global/base endpoints use base pricing; the us./eu./au./jp. regional
+    cross-region inference profiles carry a 10% premium."""
+    model_data = _load_root_cost_map()
+
+    base_pricing = {
+        "input_cost_per_token": 3e-06,
+        "output_cost_per_token": 1.5e-05,
+        "cache_creation_input_token_cost": 3.75e-06,
+        "cache_read_input_token_cost": 3e-07,
+    }
+    regional_pricing = {
+        "input_cost_per_token": 3.3e-06,
+        "output_cost_per_token": 1.65e-05,
+        "cache_creation_input_token_cost": 4.125e-06,
+        "cache_read_input_token_cost": 3.3e-07,
+    }
+
+    expected = {
+        "anthropic.claude-sonnet-5": base_pricing,
+        "global.anthropic.claude-sonnet-5": base_pricing,
+        "us.anthropic.claude-sonnet-5": regional_pricing,
+        "eu.anthropic.claude-sonnet-5": regional_pricing,
+        "au.anthropic.claude-sonnet-5": regional_pricing,
+        "jp.anthropic.claude-sonnet-5": regional_pricing,
+    }
+
+    for model_name, pricing in expected.items():
+        assert model_name in model_data, f"Missing model entry: {model_name}"
+        info = model_data[model_name]
+        assert info["litellm_provider"] == "bedrock_converse"
+        assert info["bedrock_output_config_effort_ceiling"] == "xhigh"
+        for key, value in pricing.items():
+            assert info[key] == value, f"{model_name}.{key} = {info[key]}, want {value}"
+
+
+def test_sonnet_5_present_in_bundled_backup():
+    """The bundled backup is the runtime fallback (and what tests load with
+    ``LITELLM_LOCAL_MODEL_COST_MAP=True``); it must carry the same entries as the
+    root cost map, otherwise the model resolves on one path but not the other."""
+    backup = GetModelCostMap.load_local_model_cost_map()
+    for model_name in ALL_SONNET_5_VARIANTS:
+        assert model_name in backup, f"Missing from backup cost map: {model_name}"
+
+
+def test_sonnet_5_registered_for_bedrock_converse():
+    assert "anthropic.claude-sonnet-5" in BEDROCK_CONVERSE_MODELS
+
+
+def test_sonnet_5_provider_resolves_via_model_info(local_model_cost_map):
+    """Regression: ``claude-sonnet-5`` must resolve to provider ``anthropic``.
+
+    Before the cost-map entry existed, the model was unknown to LiteLLM, so it
+    could not be tied to the ``anthropic`` provider and an ``anthropic/*``
+    wildcard deployment would not match it."""
+    info = litellm.get_model_info(model="claude-sonnet-5")
+    assert info["litellm_provider"] == "anthropic"
+    assert info["max_input_tokens"] == 1000000
+    assert info["max_output_tokens"] == 128000
+
+
+@pytest.mark.parametrize(
+    "cost_map",
+    [_load_root_cost_map(), GetModelCostMap.load_local_model_cost_map()],
+    ids=["root", "bundled_backup"],
+)
+def test_sonnet_5_all_variants_carry_adaptive_thinking_flag(cost_map):
+    """Every Sonnet 5 entry must advertise ``supports_adaptive_thinking``.
+
+    Adaptive-thinking detection is cost-map driven, so a single variant missing
+    the flag silently sends the legacy ``thinking.type='enabled'`` shape and the
+    provider 400s. This guards against a future variant being added without it."""
+    variants = [k for k in cost_map if "claude-sonnet-5" in k]
+    assert variants, "no claude-sonnet-5 entries found in cost map"
+    missing = [k for k in variants if cost_map[k].get("supports_adaptive_thinking") is not True]
+    assert not missing, f"missing supports_adaptive_thinking: {missing}"