Hey @bluehorshoe452_15_07606 the response transformer does not forward any response params that it does not recognize, that would mean the response would no longer be openai compliant.
We added a header called 'x-portkey-strict-open-ai-compliance' to allow forwarding such parameters, but this has to be implemented for the provider.
Would you like to work on it?
you can use this for reference
https://github.com/Portkey-AI/gateway/pull/482