diff --git a/js/plugins/anthropic/src/models.ts b/js/plugins/anthropic/src/models.ts
index 2ee33d933c..bb5fa1e5b2 100644
--- a/js/plugins/anthropic/src/models.ts
+++ b/js/plugins/anthropic/src/models.ts
@@ -87,6 +87,10 @@ export const KNOWN_CLAUDE_MODELS: Record<
     'claude-haiku-4-5',
     AnthropicThinkingConfigSchema
   ),
+  'claude-opus-4-5': commonRef(
+    'claude-opus-4-5',
+    AnthropicThinkingConfigSchema
+  ),
   'claude-opus-4-1': commonRef(
     'claude-opus-4-1',
     AnthropicThinkingConfigSchema