How to properly configure elia to use OpenAI with `api_base`

[paw-lu]

If I set the environment variables OPENAI_API_KEY and OPENAI_BASE_URL, I can successfully run this python script:

from openai import OpenAI
client = OpenAI()

chat_completion = client.chat.completions.create(
    messages=[
        {
            "role": "user",
            "content": "Hello world!",
        }
    ],
    model="gpt-3.5-turbo",
)
print(chat_completion.choices[0].message.content)

$ export OPENAI_API_KEY = "abc123"
$ export OPENAI_BASE_URL = "https://paw-lu.com/api/v1"
$ python run_openai.py
Hello! How can I assist you today?

However when I try to use the same values in elia's config:

[[ models ]]
name = "gpt-3.5-turbo"
display_name = "Hello"
api_key = "abc123"
api_base = "https://paw-lu.com/api/v1"

I get a 500: internal server error from OpenAI.

What am I doing wrong here that makes the two inconsistent?