next vLLM release will have this

if you use gateways, GoModel support the S1 endpoints, my favorite feature is the virtual models, stable name, I can swap out the backing model(s)

https://gomodel.enterpilot.io/docs/getting-started/quickstar...

(the "kev" in the docs is my fault, I should have said Jev / System1 in my feature request)