diff --git a/jac-mtllm/examples/inherit_basellm.jac b/jac-mtllm/examples/inherit_basellm.jac
index b55d03ab47..66ba1289b1 100644
--- a/jac-mtllm/examples/inherit_basellm.jac
+++ b/jac-mtllm/examples/inherit_basellm.jac
@@ -7,6 +7,9 @@ glob PROMPT_TEMPLATE: str = """
 [Information]
 {information}
 
+[Context]
+{context}
+
 [Output Information]
 {output_information}
 
@@ -15,7 +18,7 @@ glob PROMPT_TEMPLATE: str = """
 
 [Action]
 {action}
-""";
+""";  # [Context] will not be appear in the prompt
 
 obj Florence :BaseLLM: {
     with entry {
@@ -91,7 +94,7 @@ enum DamageType {
 }
 
 can ""
-predict_vehicle_damage(img: Image) -> DamageType by llm(is_custom=True);
+predict_vehicle_damage(img: Image) -> DamageType by llm(is_custom=True,raw_output=True);
 
 with entry {
     img = 'car_scratch.jpg';
diff --git a/jac-mtllm/mtllm/aott.py b/jac-mtllm/mtllm/aott.py
index 881f3b858f..6d056ddc00 100644
--- a/jac-mtllm/mtllm/aott.py
+++ b/jac-mtllm/mtllm/aott.py
@@ -128,7 +128,7 @@ def aott_raise(
         return f"[Output] {result}"
     meaning_typed_input = (
         "\n".join(meaning_typed_input_list)  # type: ignore
-        if not contains_media
+        if not (contains_media and not is_custom)
         else meaning_typed_input_list
     )
     return model(meaning_typed_input, media=media, **model_params)  # type: ignore
diff --git a/jac-mtllm/mtllm/plugin.py b/jac-mtllm/mtllm/plugin.py
index 536dbeb99f..1b2c13de1a 100644
--- a/jac-mtllm/mtllm/plugin.py
+++ b/jac-mtllm/mtllm/plugin.py
@@ -62,6 +62,9 @@ def with_llm(
         is_custom = (
             model_params.pop("is_custom") if "is_custom" in model_params else False
         )
+        raw_output = (
+            model_params.pop("raw_output") if "raw_output" in model_params else False
+        )
         available_methods = model.MTLLM_METHOD_PROMPTS.keys()
         assert (
             method in available_methods
@@ -118,8 +121,12 @@ def with_llm(
             _globals,
             _locals,
         )
-        _output = model.resolve_output(
-            meaning_out, output_hint, output_type_explanations, _globals, _locals
+        _output = (
+            model.resolve_output(
+                meaning_out, output_hint, output_type_explanations, _globals, _locals
+            )
+            if not raw_output
+            else meaning_out
         )
         return _output
 
diff --git a/jac-mtllm/mtllm/utils.py b/jac-mtllm/mtllm/utils.py
index cbbf9d36ed..2e1e060ef9 100644
--- a/jac-mtllm/mtllm/utils.py
+++ b/jac-mtllm/mtllm/utils.py
@@ -107,7 +107,9 @@ def extract_template_placeholders(template: str) -> list:
 def format_template_section(template_section: str, values_dict: dict) -> str:
     """Format a template section with given values."""
     placeholders = extract_template_placeholders(template_section)
-    filtered_values = {
-        key: values_dict[key] for key in placeholders if key in values_dict
-    }
-    return template_section.format(**filtered_values).strip()
+    formatted_sections = []
+    for placeholder in placeholders:
+        if placeholder in values_dict and values_dict[placeholder]:
+            section_template = f"[{placeholder.title()}]\n{values_dict[placeholder]}"
+            formatted_sections.append(section_template)
+    return "\n\n".join(formatted_sections).strip()