diff --git a/benchmark/over_time.py b/benchmark/over_time.py
index 884dfefc3..f04da3730 100644
--- a/benchmark/over_time.py
+++ b/benchmark/over_time.py
@@ -50,7 +50,10 @@ def plot_over_time(yaml_file):
         spine.set_linewidth(0.5)
 
     colors = [
-        "red" if "gpt-4" in model else "green" if "gpt-3.5" in model else "blue" for model in models
+        "orange" if "-4o-" in model and "gpt-4o-mini" not in model
+        else "red" if "gpt-4" in model
+        else "green" if "gpt-3.5" in model
+        else "blue" for model in models
     ]
     ax.scatter(dates, pass_rates, c=colors, alpha=0.5, s=120)