OpenAI() key default to "OPENAI_API_KEY"

[iuiu34]

Describe the issue:

OpenAI() has arg api_key.
Why this does not default to os.environ['OPENAI_API_KEY']?

Expected behavior

OpenAI()
is callable without args

Reproduce the code example:

`OpenAI()`

Error message:

No response

Context for the issue:

No response

[stoyan-stoyanov]

hi @iuiu34 thanks for bringing this up. I also had some feedback that loading API keys by default can create some issues like using the wrong API key. Another concern I have is that if one model provider does that by default and the rest don't this creates inconsistencies in the API.
I will keep this open until I get some more user feedback.