Bug Description

[This is not strictly a bug but IMHO confusing and potentially risky]

When using OpenAI LLM with Azure, there is a default value for the model parameter. The LLM doesn't seem to use this parameter at all (instead uses azure_deployment), but given the relation to "real" OpenAI LLM this may change in the future. Then this default might become active unnoticed.

Also, the model property of the LLM object will return the default if it is not overridden. There is no property for azure_deployment.

I would suggest to remove the default and allow None as value. Maybe the model property can be an alias for azure_deployment.

This is the respective line in the code where the default is set:

Expected Behavior

Azure LLM has None default for model property or mirrors azure_deployment.

Reproduction Steps

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- Sample code snippet, or a GitHub Gist link -

Operating System

any

Models Used

OpenAI

Package Versions

livekit-agents==1.6.1

Session/Room/Call IDs

No response

Proposed Solution

Additional Context

No response

Screenshots and Recordings

No response