diff --git a/.changeset/quiet-flies-suffer.md b/.changeset/quiet-flies-suffer.md
new file mode 100644
index 0000000000..326449c1d1
--- /dev/null
+++ b/.changeset/quiet-flies-suffer.md
@@ -0,0 +1,5 @@
+---
+"claude-dev": patch
+---
+
+Support prompt caching and thinking for Opus 4.1 through openrouter