diff --git a/apps/web/src/api/types.ts b/apps/web/src/api/types.ts
index ed01ff8..de702ee 100644
--- a/apps/web/src/api/types.ts
+++ b/apps/web/src/api/types.ts
@@ -532,6 +532,8 @@ export type WsFrame =
       tokens_used?: number | null;
       ctx_used?: number | null;
       ctx_max?: number | null;
+      cache_tokens?: number | null;
+      reasoning_tokens?: number | null;
       started_at?: string | null;
       finished_at?: string | null;
       // model-attribution: the model that produced this assistant message.