models: add o3 and o4-mini

Author: EYH0602

src/experiment.py

@@ -23,6 +23,8 @@
     "o1-preview-2024-09-12",
     "o1-2024-12-17",
     "o3-mini-2025-01-31",
+    "o3-2025-04-16",
+    "o4-mini-2025-04-16",
 ]
 
 CLAUDE_MODELS = [