diff --git a/services/advisor.py b/services/advisor.py
index 66b05f0..aad8a54 100644
--- a/services/advisor.py
+++ b/services/advisor.py
@@ -135,7 +135,7 @@ class Advisor:
         )
 
         # 4. Chaîne LLM
-        chain = prompt | ChatOpenAI(model="gpt-4o-mini") | parser
+        chain = prompt | ChatOpenAI(model="gpt-4o") | parser
 
         # 5. Invocation
         result: AdvisorDecision = chain.invoke({
diff --git a/services/extractor.py b/services/extractor.py
index cdd7757..d4e7b00 100644
--- a/services/extractor.py
+++ b/services/extractor.py
@@ -126,7 +126,7 @@ def __run_extraction_chain(
 
     prompt = ChatPromptTemplate.from_template(prompt_template)
 
-    chain: Runnable = prompt | ChatOpenAI(model="gpt-4o-mini") | parser
+    chain: Runnable = prompt | ChatOpenAI(model="gpt-4o") | parser
 
     result = chain.invoke({
         "processed_text": processed_text,