diff --git a/.env.example b/.env.example
index aa4cc25..b999e0e 100644
--- a/.env.example
+++ b/.env.example
@@ -5,9 +5,13 @@
 # https://makersuite.google.com/app/apikey
 GOOGLE_API_KEY=
 
+# https://platform.openai.com/settings/organization/api-keys
 OPENAI_API_KEY=
+# https://admin.mistral.ai/organization/api-keys
 MISTRAL_API_KEY=
+# https://platform.deepseek.com/api_keys
 DEEPSEEK_API_KEY=
+# https://console.x.ai/team/%TEAM_ID%/api-keys
 XAI_API_KEY=
 ###############################################################################
 # Configurazioni per gli agenti di mercato
diff --git a/src/app/configs.py b/src/app/configs.py
index 006199a..edd3e39 100644
--- a/src/app/configs.py
+++ b/src/app/configs.py
@@ -82,7 +82,7 @@ class ModelsConfig(BaseModel):
 
     @property
     def all_models(self) -> list[AppModel]:
-        return self.gemini + self.ollama
+        return self.gemini + self.ollama + self.gpt + self.mistral + self.deepseek + self.xai
 
     def validate_models(self) -> None:
         """