Update app.py

app.py

@@ -45,6 +45,7 @@ from transformers.generation.streamers import TextIteratorStreamer
 # 1.  MODEL CONFIG — Darwin-31B-Opus (Single Model)
 # ══════════════════════════════════════════════════════════════════════════════
 MODEL_ID = "FINAL-Bench/Darwin-31B-Opus"
+MODEL_BASE = "google/gemma-4-31B-it"       # processor/tokenizer source
 MODEL_NAME = "Darwin-31B-Opus"
 MODEL_DESC = "Gemma 4 31B + Claude Opus Distill — Darwin V6 diagnostic-guided evolutionary merge"
 MODEL_INFO = {
@@ -98,7 +99,7 @@ def _load_model(model_name: str):
     model_id = model_cfg["id"]
     print(f"[MODEL] Loading {model_name} ({model_id})...", flush=True)
 
-    _processor = AutoProcessor.from_pretrained(model_id)
+    _processor = AutoProcessor.from_pretrained(MODEL_BASE)
     _model = AutoModelForMultimodalLM.from_pretrained(
         model_id, device_map="auto", dtype=torch.bfloat16,
     )