feat: switch to OpenAIServerModel for improved API integration

app.py

@@ -1,4 +1,5 @@
-from smolagents import CodeAgent, HfApiModel
+from smolagents import CodeAgent, HfApiModel, OpenAIServerModel
+
 from Gradio_UI import GradioUI
 import yaml
 import os
@@ -25,13 +26,20 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 
 # --- Basic Agent Definition ---
 
-# Configure the Language Model
-model = HfApiModel(
-    max_tokens=2096,
-    temperature=0.5,
-#    model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud',
-    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
-    custom_role_conversions=None,
+# # Configure the Language Model. Overloaded or not available
+# model = HfApiModel(
+#     max_tokens=2096,
+#     temperature=0.5,
+# #    model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud/', # nope
+# #    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
+#     custom_role_conversions=None,
+# )
+
+# Try to use OpenAI API
+model = OpenAIServerModel(
+    model_id="gpt-4o",
+    api_base="https://api.openai.com/v1",
+    api_key=os.environ["OPENAI_API_KEY"],
 )
 
 # Instantiate Tools