[Brief Issue Description] Library doesn't work with Azure (malformed base url)

[alea-git]

Description

Thanks for the amazing library first of all, it's really nice to have a kotlin-based lib for interacting with these services, and I really like the API.

Let's start by saying that I have no issues with OpenAI, it works as intented.

With Microsoft Azure however I cannot use it: I've investigated the error and apparently it's due to a malformation of the base url. Let me explain:

The URL Azure Al Foundry portal shows me is: https://<ID>-germanywestcentra.cognitiveservices.azure.com/openai/deployments/gpt-4o/v1/completions

But when using openai-kotlin and I set the baseUrl to: https://mirce-m7vrcp1d-germanywestcentra.cognitiveservices.azure.com/openai/deployments/gpt-4o/v1/

It appends /chat/completions at the end of the url, making it invalid (/chat is not required).

Also I can't use OpenAIHost.azure(...) because it takes for granted that the service is hosted on .openai.azure.com, which is not (as you can see from the url Azure gives me.

---

Do you think it would be possible for you to tackle it when you have some free time?

[dcalde]

I have the same problem. Configuring it the for openai compatible endpoint of deepinfra results in invalid urls:

val deepinfra = OpenAI(
    token = deepInfraApiKey,
    host = OpenAIHost("https://api.deepinfra.com/v1/openai")
)
deepinfra.embeddings(embeddingRequest)

--> Client request(POST https://api.deepinfra.com/v1/embeddings) invalid: 404 Not Found.

The url should have been https://api.deepinfra.com/v1/openai/embeddings _

[dcalde]

I was able to get it to work with fudging the baseurl:

val deepinfra = OpenAI(
    token = deepInfraApiKey,
    host = OpenAIHost("https://api.deepinfra.com/v1/openai/DUMMY")
)

FYI this affects version 3.8.2. I haven't confirmed if either the bug or the workaround apply to 4.x.x