diff --git a/src/server.ts b/src/server.ts
index 8021709..77871ef 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -116,7 +116,17 @@ Bun.serve({
     if (pfad === "/models") {
       const erlaubt = acl.get(keyName) ?? [];
       const namen = Object.keys(config.aliases).filter((a) => erlaubt.length === 0 || erlaubt.includes(a));
-      return Response.json({ object: "list", data: namen.map((id) => ({ id, object: "model", owned_by: "42i" })) });
+      const data = namen.map((id) => ({ id, object: "model", owned_by: "42i" }));
+      // Im Parallelbetrieb auch die LiteLLM-Liste des Clients zeigen, sonst
+      // verlieren Clients, die Modelle per /models entdecken, die 2608-Namen.
+      if (config.fallback !== undefined) {
+        try {
+          const u = config.upstreams[config.fallback.upstream];
+          const r = await fetch(`${u.base}/models`, { headers: { authorization: `Bearer ${auth}` }, signal: AbortSignal.timeout(10_000) });
+          if (r.ok) for (const m of ((await r.json()) as { data?: { id: string }[] }).data ?? []) if (!namen.includes(m.id)) data.push({ id: m.id, object: "model", owned_by: config.fallback.upstream });
+        } catch { /* LiteLLM nicht da: nur eigene Liste */ }
+      }
+      return Response.json({ object: "list", data });
     }
     if (req.method !== "POST" || !(JSON_PFADE.has(pfad) || FORM_PFADE.has(pfad))) return Response.json({ error: { message: `Pfad ${pfad} wird nicht bedient` } }, { status: 404 });