GPT-5.4 model is not working, throwing 500 errors

All of my prompt submissions are returning the error:

API Error: "unavailable: HTTP error: 500 Internal Server Error" Retrying in 0 seconds.

API Error: "unavailable: HTTP error: 500 Internal Server Error" Retrying in 1 seconds.

Here's my client info:

About                                                                        
                                                                             
Version     0.18.1 (commit 6c92107e)                                         
OS          darwin (arm64)                                                   
Node        v23.7.0                                                          
Shell       /bin/zsh                                                         
Terminal    xterm-256color                                                   
Workspace   <hidden>
Log File    <hidden>
Log Level   INFO                                                             
User        <hidden>                                         
Tenant      https://d6.api.augmentcode.com/                                  
Session     <hidden>                             

Anyone else seeing similar issues?