Hey Vapi Team! For workflows, I cannot set a first message for non-start and non-end nodes within a workflow through the API. Is there a way that I can get around this? Also, it seems that GPT-5 does not yet work. Is there a setting that I'm missing, or a specific way that I need to integrate GPT-5, or is that just not built out yet?

Hey there, firstMessage is meant to be a

say

command for the very first message of the conversation, meaning it can only happen once whether it is a workflow or a single prompt assistant. Is there any reason why you would want to implement multiple firstMessages? For GPT-5 we are still ironing out some features, and it works well for some use-cases but it's not fully fleshed out yet.