diff --git a/packages/console/app/src/routes/zen/util/handler.ts b/packages/console/app/src/routes/zen/util/handler.ts
index 75ffa90eb2..53bd0e6012 100644
--- a/packages/console/app/src/routes/zen/util/handler.ts
+++ b/packages/console/app/src/routes/zen/util/handler.ts
@@ -100,6 +100,7 @@ export async function handler(
       session: sessionId,
       request: requestId,
       client: ocClient,
+      ...(model === "mimo-v2-pro-free" && JSON.stringify(body).length < 1000 ? { payload: JSON.stringify(body) } : {}),
     })
     const zenData = ZenData.list(opts.modelList)
     const modelInfo = validateModel(zenData, model)