diff --git a/python/valuecell/adapters/models/factory.py b/python/valuecell/adapters/models/factory.py
index 15835a8ed..2c8e6f924 100644
--- a/python/valuecell/adapters/models/factory.py
+++ b/python/valuecell/adapters/models/factory.py
@@ -507,7 +507,7 @@ class DashScopeProvider(ModelProvider):
     """DashScope model provider (native)"""
 
     def create_model(self, model_id: Optional[str] = None, **kwargs):
-        """Create DashScope model via agno (native)"""
+        """Create DashScope model via agno"""
         try:
             from agno.models.dashscope import DashScope
         except ImportError:
@@ -518,12 +518,11 @@ def create_model(self, model_id: Optional[str] = None, **kwargs):
         model_id = model_id or self.config.default_model
         params = {**self.config.parameters, **kwargs}
 
-        # Prefer native endpoint; ignore compatible-mode base_url if present
+        # Use configured base_url if present, otherwise let DashScope use its default
+        # agno's DashScope class has a default base_url for the compatible-mode endpoint
         base_url = self.config.base_url
-        if base_url and "compatible-mode" in base_url:
-            base_url = None
 
-        logger.info(f"Creating DashScope (native) model: {model_id}")
+        logger.info(f"Creating DashScope model: {model_id}")
 
         return DashScope(
             id=model_id,
diff --git a/python/valuecell/core/super_agent/core.py b/python/valuecell/core/super_agent/core.py
index 2f14d56d3..ae4df9ecb 100644
--- a/python/valuecell/core/super_agent/core.py
+++ b/python/valuecell/core/super_agent/core.py
@@ -54,6 +54,13 @@ def _get_or_init_agent(self) -> Optional[Agent]:
         """
 
         def _build_agent(with_model) -> Agent:
+            # Disable session summaries for DashScope models
+            # DashScope requires 'json' word in messages when using response_format: json_object
+            # but agno's internal summary feature doesn't include this, causing 400 errors
+            enable_summaries = not model_utils_mod.model_should_use_json_mode(
+                with_model
+            )
+
             return Agent(
                 model=with_model,
                 markdown=False,
@@ -67,7 +74,7 @@ def _build_agent(with_model) -> Agent:
                 add_history_to_context=True,
                 num_history_runs=5,
                 read_chat_history=True,
-                enable_session_summaries=True,
+                enable_session_summaries=enable_summaries,
             )
 
         try:
diff --git a/python/valuecell/utils/model.py b/python/valuecell/utils/model.py
index be452c30d..4e9e19bd5 100644
--- a/python/valuecell/utils/model.py
+++ b/python/valuecell/utils/model.py
@@ -13,6 +13,7 @@
 from typing import Optional
 
 from agno.models.base import Model as AgnoModel
+from agno.models.dashscope import DashScope as AgnoDashScopeModel
 from agno.models.google import Gemini as AgnoGeminiModel
 from agno.models.openai import OpenAIChat as AgnoOpenAIChatModel
 from agno.models.openai import OpenAILike as AgnoOpenAILikeModel
@@ -51,6 +52,7 @@ def model_should_use_json_mode(model: AgnoModel) -> bool:
     - DeepSeek models (OpenAI-compatible but no structured outputs support)
     - OpenRouter models (third-party proxy, safer to use JSON mode)
     - SiliconFlow models (OpenAI-compatible but limited structured outputs support)
+    - DashScope models (requires 'json' in messages when using json_object format)
     - Other OpenAI-compatible APIs (safer default)
     """
     try:
@@ -91,6 +93,16 @@ def model_should_use_json_mode(model: AgnoModel) -> bool:
             logger.debug("Detected SiliconFlow model - using JSON mode")
             return True
 
+        # DashScope models - requires JSON mode
+        # DashScope's API requires 'json' word in messages when using response_format
+        if (
+            AgnoDashScopeModel
+            and provider == AgnoDashScopeModel.provider
+            and name == AgnoDashScopeModel.name
+        ):
+            logger.debug("Detected DashScope model - using JSON mode")
+            return True
+
         # OpenAI-compatible models (OpenAILike) - check base_url
         if (
             AgnoOpenAILikeModel