Fix regex pattern in `prepare_submission_data` for accurate answer extraction

src/gaia_solving_agent/agent.py

@@ -27,14 +27,20 @@ from gaia_solving_agent.utils import extract_pattern
 cheap_model_name = "meta-llama/Meta-Llama-3.1-8B-Instruct"
 light_model_name = "Qwen/Qwen2.5-32B-Instruct"
 balanced_model_name = "meta-llama/Meta-Llama-3.1-70B-Instruct"
-reasoning_model_name = "deepseek-ai/DeepSeek-R1-0528"
+reasoning_model_name = "Qwen/Qwen3-235B-A22B"
 vlm_model_name = "mistralai/Mistral-Small-3.1-24B-Instruct-2503"  # For VLM needs
-openai_llm = OpenAI(
+openai_reasoning = OpenAI(
     model="gpt-4.1",
     api_key=OPENAI_API_KEY,
     temperature=.1,
     max_retries=5,
 )
+openai_llm = OpenAI(
+    model="gpt-4.1-nano",
+    api_key=OPENAI_API_KEY,
+    temperature=.1,
+    max_retries=5,
+)
 mistral_llm = MistralAI(
         model="mistral-small-latest",
         api_key=MISTRAL_API_KEY,
@@ -80,8 +86,7 @@ class GaiaWorkflow(Workflow):
         additional_file_path = await ctx.store.get("additional_file_path")
         user_msg = await ctx.store.get("user_msg")
 
-        llm = openai_llm
-        # llm = get_llm(reasoning_model_name)
+        llm = openai_reasoning
         prompt_template = RichPromptTemplate(PLANING_PROMPT)
         file_extension = Path(additional_file_path).suffix if additional_file_path else ""
         prompt = prompt_template.format(
@@ -182,7 +187,7 @@ gaia_solving_agent = FunctionAgent(
         *research_paper_reader_toolspec.to_tool_list(),
         text_content_analysis,
     ],
-    llm=openai_llm,
+    llm=get_llm(reasoning_model_name),
     system_prompt="""
     You are a helpful assistant that uses tools to browse additional information and resources on the web to answer questions.
     

src/gaia_solving_agent/hf_submission_api.py

@@ -150,7 +150,7 @@ async def run_agent(agent, questions_data, additional_files):
 
 def prepare_submission_data(username:str, agent_code: str, answers_payload: list[dict]):
     def extract_answer(answer: str) -> str | int:
-        pattern = r"FINAL ANSWER:\s*(.*)\s+"
+        pattern = r"FINAL ANSWER:\s*([^`.]*)"
         search = re.search(pattern, answer)
         extracted_answer = search.group(1).strip() if search else ""
         try: