diff --git a/src/providers/pi.ts b/src/providers/pi.ts
index b741f222..055d0852 100644
--- a/src/providers/pi.ts
+++ b/src/providers/pi.ts
@@ -11,6 +11,7 @@ import type { Provider, SessionSource, SessionParser, ParsedProviderCall } from
 const modelDisplayNames: Record<string, string> = {
   'gpt-5.4': 'GPT-5.4',
   'gpt-5.4-mini': 'GPT-5.4 Mini',
+  'gpt-5.5': 'GPT-5.5',
   'gpt-5': 'GPT-5',
   'gpt-4o': 'GPT-4o',
   'gpt-4o-mini': 'GPT-4o Mini',