Unable to Access GPT-5.3-Codex-Spark with a ChatGPT Pro Subscription #45666

What version of Codex CLI is running?

0.154.0

What subscription do you have?

pro

Which model were you using?

gpt-5.3-codex-spark

What platform is your computer?

Windows (WSL2/Linux)

What terminal emulator and version are you using (if applicable)?

Ubuntu on WSL

Codex doctor report

What issue are you seeing?

I can’t access GPT-5.3-Codex-Spark in the Codex CLI. It doesn’t appear in
the model list, and selecting it manually returns this error:

The 'gpt-5.3-codex-spark' model is not supported when using Codex with a ChatGPT account.

What steps can reproduce the bug?

Uploaded thread: 01a0a46f-b1db-78a3-b407-7362ef698635

What is the expected behavior?

No response

Additional information

No response