这是实测账号出现的数据包稳 
{"code":"subscription:free-usage-exhausted","error":"You've used all the included free usage for model grok-4.5-build-free for now. Usage resets over a rolling 24-hour window — tokens (actual/limit): 2040166/2000000. Upgrade to a Grok subscription for higher limits: https://grok.com/supergrok"}