SB-PROV-451The model declined to summarize this
What happened
The provider's safety systems refused the content. It is occasionally a false positive.
What to do
Try a narrower range or a different summary style.
Still stuck?
The message that showed you this code also carries a short trace id — something like trace f3a9c2. Paste the whole footer line into the support server and your exact request can be looked at directly. Never paste an API key or private message content.