diff --git a/history/26016-cost.txt b/history/26016-cost.txt
new file mode 100644
index 0000000..e115ca6
--- /dev/null
+++ b/history/26016-cost.txt
@@ -0,0 +1,7 @@
+Total cost:            $47.63
+Total duration (API):  1h 13m 56s
+Total duration (wall): 1d 9h 37m
+Total code changes:    5197 lines added, 1404 lines removed
+Usage by model:
+        claude-haiku:  89.0k input, 10.2k output, 187.2k cache read, 65.5k cache write ($0.2404)
+     claude-opus-4-5:  13.7k input, 224.9k output, 46.6m cache read, 2.9m cache write ($47.39)