diff --git a/examples/local_models/xml_scraper_ollama.py b/examples/local_models/xml_scraper_ollama.py
index f13122f7..cc8c3ad9 100644
--- a/examples/local_models/xml_scraper_ollama.py
+++ b/examples/local_models/xml_scraper_ollama.py
@@ -27,7 +27,6 @@ graph_config = {
     "llm": {
         "model": "ollama/llama3",
         "temperature": 0,
-        "format": "json",  # Ollama needs the format to be specified explicitly
         # "model_tokens": 2000, # set context length arbitrarily
         "base_url": "http://localhost:11434",
     },
diff --git a/scrapegraphai/nodes/generate_answer_csv_node.py b/scrapegraphai/nodes/generate_answer_csv_node.py
index e12c64f9..c12e0688 100644
--- a/scrapegraphai/nodes/generate_answer_csv_node.py
+++ b/scrapegraphai/nodes/generate_answer_csv_node.py
@@ -59,6 +59,7 @@ class GenerateAnswerCSVNode(BaseNode):
         """
         super().__init__(node_name, "node", input, output, 2, node_config)
         self.llm_model = node_config["llm_model"]
+        self.llm_model.format="json"
         self.verbose = (
             False if node_config is None else node_config.get("verbose", False)
         )
diff --git a/scrapegraphai/nodes/generate_answer_node.py b/scrapegraphai/nodes/generate_answer_node.py
index 26a2ed66..44122176 100644
--- a/scrapegraphai/nodes/generate_answer_node.py
+++ b/scrapegraphai/nodes/generate_answer_node.py
@@ -44,8 +44,8 @@ class GenerateAnswerNode(BaseNode):
         node_name: str = "GenerateAnswer",
     ):
         super().__init__(node_name, "node", input, output, 2, node_config)
-
         self.llm_model = node_config["llm_model"]
+        self.llm_model.format="json"
         self.verbose = (
             True if node_config is None else node_config.get("verbose", False)
         )
diff --git a/scrapegraphai/nodes/generate_answer_omni_node.py b/scrapegraphai/nodes/generate_answer_omni_node.py
index 2b9281ed..9a0aacc4 100644
--- a/scrapegraphai/nodes/generate_answer_omni_node.py
+++ b/scrapegraphai/nodes/generate_answer_omni_node.py
@@ -44,6 +44,7 @@ class GenerateAnswerOmniNode(BaseNode):
         super().__init__(node_name, "node", input, output, 3, node_config)
 
         self.llm_model = node_config["llm_model"]
+        self.llm_model.format="json"
         self.verbose = (
             False if node_config is None else node_config.get("verbose", False)
         )
diff --git a/scrapegraphai/nodes/generate_answer_pdf_node.py b/scrapegraphai/nodes/generate_answer_pdf_node.py
index 3a520745..40ec1889 100644
--- a/scrapegraphai/nodes/generate_answer_pdf_node.py
+++ b/scrapegraphai/nodes/generate_answer_pdf_node.py
@@ -58,6 +58,7 @@ class GenerateAnswerPDFNode(BaseNode):
         """
         super().__init__(node_name, "node", input, output, 2, node_config)
         self.llm_model = node_config["llm_model"]
+        self.llm_model.format="json"
         self.verbose = (
             False if node_config is None else node_config.get("verbose", False)
         )