Azure OpenAI: custom/deployed model names not selectable in "Model Name" dropdown #6590

Describe the bug

When configuring the "Azure OpenAI" node in a Chatflow (e.g. "Legal Case Advisor"), the Model Name field only shows a fixed/predefined list of models (gpt-5.2, gpt-5.2-pro, gpt-5.2-chat-latest, gpt-5.2-codex, gpt-5.1, gpt-5, gpt-5-mini, gpt-5-nano, gpt-4.1, o3-mini, o3, o3-pro, etc.).

Models that correspond to a custom deployment made in Azure (in this case, gpt-5.4-nano) do not appear in the list, even though a Connect Credential is already configured pointing to that deployment (gpt-5.4-nano-suporte-juridico).

To Reproduce

Steps to reproduce the behavior:

Add the Azure OpenAI node to a Chatflow.
Configure a Connect Credential pointing to a custom Azure deployment (e.g. gpt-5.4-nano).
Open the "Model Name" field and type the exact deployment name.
The field only shows autocomplete suggestions from the fixed list of supported models, without including the custom deployment name, even when typing the exact name.

Expected behavior

The "Model Name" field should allow free text entry of the exact deployment name configured in Azure, since in Azure OpenAI the "Model Name" corresponds to the deployment name, which can be any custom string defined by the user — not necessarily a standard OpenAI model name.
Screenshots
(attach the images)
Setup

Provider: Azure OpenAI
Flowise version: (fill in)
Deployment model: gpt-5.4-nano (deployment name: gpt-5.4-nano-suporte-juridico)

Screenshots

Flow

No response

Use Method

Docker

Flowise Version

3.1.2

Operating System

Linux

Browser

Chrome

Additional context

No response