Hi!
I’ve been facing some issues while trying to use the OpenRouter Chat Model node in n8n. At first, I encountered the following error when using paid models:
“Provider returned error”
After some digging, I read that this could be related to provider overload — which, while not ideal, is at least understandable.
However, today a separate issue popped up. I tried running a different workflow (which had worked perfectly yesterday). As you can see in the image below, the error occurs during the second iteration of the node — the first one runs just fine, but the second crashes and now I’m getting this error:
I’ve already double-checked my credentials and setup — everything seems correct on that end. I haven’t made any changes to the workflow or credentials between yesterday and today.
Is anyone else experiencing this? 
Could this be related to a temporary service outage or a change on OpenRouter’s end?
Would really appreciate any insights. Thanks in advance!
