Update src/macg/llm_hf.py

src/macg/llm_hf.py

@@ -27,9 +27,8 @@ class HuggingFaceInferenceLLM(LLMClient):
         timeout_s: int = 90,
     ) -> None:
         self.model = model
-        self.token = token or os.getenv("HF_TOKEN")
-        if not self.token:
-            raise ValueError("HF_TOKEN is not set.")
+        # ✅ allow either HF_TOKEN or HUGGINGFACEHUB_API_TOKEN, and allow missing token
+        self.token = token or os.getenv("HF_TOKEN") or os.getenv("HUGGINGFACEHUB_API_TOKEN")
         self.max_new_tokens = max_new_tokens
         self.temperature = temperature
         self.retries = retries
@@ -37,7 +36,12 @@ class HuggingFaceInferenceLLM(LLMClient):
 
     def complete(self, system: str, prompt: str) -> str:
         url = f"https://api-inference.huggingface.co/models/{self.model}"
-        headers = {"Authorization": f"Bearer {self.token}"}
+
+        # ✅ if token exists, use it; otherwise call unauthenticated
+        headers = {}
+        if self.token:
+            headers = {"Authorization": f"Bearer {self.token}"}
+
         payload = {
             "inputs": f"{system}\n\n{prompt}".strip(),
             "parameters": {