diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index 77ca423b866..4988160f19b 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -44261,6 +44261,90 @@
         "supports_response_schema": true,
         "supports_tool_choice": true
     },
+    "bedrock_mantle/openai.gpt-5.6-sol": {
+        "input_cost_per_token": 5.5e-06,
+        "cache_creation_input_token_cost": 6.875e-06,
+        "cache_read_input_token_cost": 5.5e-07,
+        "output_cost_per_token": 3.3e-05,
+        "litellm_provider": "bedrock_mantle",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "responses",
+        "use_openai_responses_path": true,
+        "supported_endpoints": [
+            "/v1/responses"
+        ],
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "bedrock_mantle/openai.gpt-5.6-terra": {
+        "input_cost_per_token": 2.75e-06,
+        "cache_creation_input_token_cost": 3.4375e-06,
+        "cache_read_input_token_cost": 2.75e-07,
+        "output_cost_per_token": 1.65e-05,
+        "litellm_provider": "bedrock_mantle",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "responses",
+        "use_openai_responses_path": true,
+        "supported_endpoints": [
+            "/v1/responses"
+        ],
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "bedrock_mantle/openai.gpt-5.6-luna": {
+        "input_cost_per_token": 1.1e-06,
+        "cache_creation_input_token_cost": 1.375e-06,
+        "cache_read_input_token_cost": 1.1e-07,
+        "output_cost_per_token": 6.6e-06,
+        "litellm_provider": "bedrock_mantle",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "responses",
+        "use_openai_responses_path": true,
+        "supported_endpoints": [
+            "/v1/responses"
+        ],
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
     "bedrock_mantle/openai.gpt-5.5": {
         "input_cost_per_token": 5.5e-06,
         "cache_read_input_token_cost": 5.5e-07,
diff --git a/model_prices_and_context_window.json b/model_prices_and_context_window.json
index df6e8c992ef..8b273174d99 100644
--- a/model_prices_and_context_window.json
+++ b/model_prices_and_context_window.json
@@ -44382,6 +44382,90 @@
         "supports_response_schema": true,
         "supports_tool_choice": true
     },
+    "bedrock_mantle/openai.gpt-5.6-sol": {
+        "input_cost_per_token": 5.5e-06,
+        "cache_creation_input_token_cost": 6.875e-06,
+        "cache_read_input_token_cost": 5.5e-07,
+        "output_cost_per_token": 3.3e-05,
+        "litellm_provider": "bedrock_mantle",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "responses",
+        "use_openai_responses_path": true,
+        "supported_endpoints": [
+            "/v1/responses"
+        ],
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "bedrock_mantle/openai.gpt-5.6-terra": {
+        "input_cost_per_token": 2.75e-06,
+        "cache_creation_input_token_cost": 3.4375e-06,
+        "cache_read_input_token_cost": 2.75e-07,
+        "output_cost_per_token": 1.65e-05,
+        "litellm_provider": "bedrock_mantle",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "responses",
+        "use_openai_responses_path": true,
+        "supported_endpoints": [
+            "/v1/responses"
+        ],
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "bedrock_mantle/openai.gpt-5.6-luna": {
+        "input_cost_per_token": 1.1e-06,
+        "cache_creation_input_token_cost": 1.375e-06,
+        "cache_read_input_token_cost": 1.1e-07,
+        "output_cost_per_token": 6.6e-06,
+        "litellm_provider": "bedrock_mantle",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "responses",
+        "use_openai_responses_path": true,
+        "supported_endpoints": [
+            "/v1/responses"
+        ],
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
     "bedrock_mantle/openai.gpt-5.5": {
         "input_cost_per_token": 5.5e-06,
         "cache_read_input_token_cost": 5.5e-07,
diff --git a/tests/test_litellm/llms/bedrock_mantle/test_bedrock_mantle_responses_transformation.py b/tests/test_litellm/llms/bedrock_mantle/test_bedrock_mantle_responses_transformation.py
index aafaf401700..19cb8e4c07c 100644
--- a/tests/test_litellm/llms/bedrock_mantle/test_bedrock_mantle_responses_transformation.py
+++ b/tests/test_litellm/llms/bedrock_mantle/test_bedrock_mantle_responses_transformation.py
@@ -397,6 +397,20 @@ class TestBedrockMantleResponsesRegistry:
         assert isinstance(cfg, BedrockMantleResponsesAPIConfig)
         assert cfg.use_openai_path is True
 
+    @pytest.mark.parametrize(
+        "model",
+        ["openai.gpt-5.6-sol", "openai.gpt-5.6-terra", "openai.gpt-5.6-luna"],
+    )
+    def test_registry_returns_config_for_gpt_5_6_family(self, local_cost_map, model):
+        from litellm.utils import ProviderConfigManager
+
+        cfg = ProviderConfigManager.get_provider_responses_api_config(
+            provider="bedrock_mantle",
+            model=model,
+        )
+        assert isinstance(cfg, BedrockMantleResponsesAPIConfig)
+        assert cfg.use_openai_path is True
+
     def test_registry_returns_native_config_for_gpt_oss(self, local_cost_map):
         # Core regression: gpt-oss-120b supports the native Responses API (AWS
         # model card), so it must get a BedrockMantleResponsesAPIConfig on the
@@ -1237,6 +1251,25 @@ class TestBedrockMantleResponsesPricing:
         assert info["cache_read_input_token_cost"] == pytest.approx(2.75e-07)
         assert info["max_input_tokens"] == 272000
 
+    @pytest.mark.parametrize(
+        "model, input_cost, cache_creation_cost, cache_read_cost, output_cost",
+        [
+            ("openai.gpt-5.6-sol", 5.5e-06, 6.875e-06, 5.5e-07, 3.3e-05),
+            ("openai.gpt-5.6-terra", 2.75e-06, 3.4375e-06, 2.75e-07, 1.65e-05),
+            ("openai.gpt-5.6-luna", 1.1e-06, 1.375e-06, 1.1e-07, 6.6e-06),
+        ],
+    )
+    def test_gpt_5_6_pricing_and_mode(
+        self, local_cost_map, model, input_cost, cache_creation_cost, cache_read_cost, output_cost
+    ):
+        info = litellm.get_model_info(f"bedrock_mantle/{model}")
+        assert info["mode"] == "responses"
+        assert info["input_cost_per_token"] == pytest.approx(input_cost)
+        assert info["cache_creation_input_token_cost"] == pytest.approx(cache_creation_cost)
+        assert info["cache_read_input_token_cost"] == pytest.approx(cache_read_cost)
+        assert info["output_cost_per_token"] == pytest.approx(output_cost)
+        assert info["max_input_tokens"] == 272000
+
     def test_models_registered(self, local_cost_map):
         assert "bedrock_mantle/openai.gpt-5.5" in litellm.bedrock_mantle_models
         assert "bedrock_mantle/openai.gpt-5.4" in litellm.bedrock_mantle_models