[Platform] Update to use the new Responses API instead of Chat Completions

[nicodelh27]

While using the bundle, I noticed that the OpenAI Platform is using the deprecated /chat/completions endpoint.
OpenAI now recommends using the new Responses API with the following endpoint /responses.

You can find the explanation in this article :
https://platform.openai.com/docs/guides/migrate-to-responses

The Responses API integrates built-in tools like web search, file search and remote MCPs.
Currently, we can't do that with Chat Completions.

[paulinevos]

Starting this today (assuming you haven't picked it up, @nicodelh27. Please lmk if you have!)

[nicodelh27]

Great thank you ! Nope, I haven’t picked it up, go ahead 👍

[TonsiTT]

Can we still retain /chat/completions for generic openai adapters? Alot of new providers have openai client compatibility that use the /chat/completions and dont support responses

[chr-hertel]

We will, but that won't be part of the OpenAI bridge than - we have it as default contract centrally implemented