Codex CLI 0.66.0 and Azure GPT-5 - 429 Too Many Requests

What version of Codex is running?

0.66.0

What subscription do you have?

Azure

Which model were you using?

gpt-5

What platform is your computer?

_No response_

What issue are you seeing?

Codex retries internally, then fails with exceeded retry limit, last status: 429 Too Many Requests

What steps can reproduce the bug?

• Create Azure OpenAI GPT-5 deployment
• Configure Codex CLI to use that deployment. Use codex exec with --config parameters to configure Azure OpenAI deployment

What is the expected behavior?

This was working earlier with Codex CLI 0.63.0 and prior versions and suddenly started failing after that.

Additional information

_No response_