Picture a Zap that needs to decide, on the fly, which AI model should draft a reply before Mobile Message sends it as a text. Not Diamond sits right there in the middle, reading the prompt and handing back a label for which large language model is the right one for that specific job, rather than locking every Zap into a single AI provider.

For a business running SMS through Zapier, that Route Prompt step becomes useful the moment a workflow needs different handling depending on what came in, a support question routed to one model and a sales enquiry routed to another, with the chosen model's output then passed along to Mobile Message to text the customer. Not Diamond does not send anything itself and it has no triggers of its own, so it simply makes the model choice earlier in the Zap, meaning the message that eventually reaches Mobile Message is built by the right AI for the job.