diff --git a/packages/types/src/providers/openrouter.ts b/packages/types/src/providers/openrouter.ts
index 22285fe6f56..5cf82d35019 100644
--- a/packages/types/src/providers/openrouter.ts
+++ b/packages/types/src/providers/openrouter.ts
@@ -42,6 +42,7 @@ export const OPEN_ROUTER_PROMPT_CACHING_MODELS = new Set([
 	"anthropic/claude-opus-4",
 	"anthropic/claude-opus-4.1",
 	"anthropic/claude-haiku-4.5",
+	"anthropic/claude-opus-4.5",
 	"google/gemini-2.5-flash-preview",
 	"google/gemini-2.5-flash-preview:thinking",
 	"google/gemini-2.5-flash-preview-05-20",
@@ -72,6 +73,7 @@ export const OPEN_ROUTER_REASONING_BUDGET_MODELS = new Set([
 	"anthropic/claude-opus-4.1",
 	"anthropic/claude-sonnet-4",
 	"anthropic/claude-sonnet-4.5",
+	"anthropic/claude-opus-4.5",
 	"anthropic/claude-haiku-4.5",
 	"google/gemini-2.5-pro-preview",
 	"google/gemini-2.5-pro",