[Windows Desktop] GPT-6 Astra missing from model picker for eligible ChatGPT Pro account

What version of the Codex App are you using (From “About Codex” dialog)?

Windows installed package: OpenAI.Codex_26.901.4073.0_x64__2p2nqsd0c76g0

Bundled runtime: codex-cli 0.153.1

What subscription do you have?

ChatGPT Pro

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

GPT-6 Astra is available in ChatGPT Work on the web for this account, but it is absent from the model picker in Codex Desktop on Windows for the same signed-in account.

The account is recognized as planType: pro by Codex. GPT-5.5 and GPT-5.6-family models are available in the desktop picker, but gpt-6-astra is not offered.

This persists after signing out and back in, fully exiting Codex, confirming that no codex.exe or codex-code-mode-host.exe processes remain, relaunching the app, and creating a new task.

What steps can reproduce the bug?

1. Sign in to ChatGPT Work on the web with the affected ChatGPT Pro account.
2. Confirm that GPT-6 Astra is available there.
3. Sign in to Codex Desktop on Windows with the same account.
4. Create a new Codex task and open the model picker.
5. Observe that GPT-6 Astra is absent.
6. Sign out of Codex Desktop, fully exit the app, terminate any remaining Codex background processes, relaunch, sign in again, and create another new task.
7. Observe that GPT-6 Astra remains absent.

No session ID is included because the problem affects the account-level model picker across newly created tasks, rather than one inference session.

What is the expected behavior?

GPT-6 Astra should appear in the Codex model picker for the eligible ChatGPT Pro account, consistent with its availability in ChatGPT Work and the announced availability for all Pro users in Work and Codex.

Additional information

The installed client appears new enough to understand Astra:

• #42605 backported the GPT-6 Astra model catalog to the 0.153 release line for 0.153.1.
• The bundled Astra entry declares minimal_client_version: 0.153.0, supported_in_api: true, and visibility: hide.
• The affected installation runs codex-cli 0.153.1.

This suggests that the client contains the Astra definition but the account-specific or remotely supplied Codex catalog is not making it visible. No exact duplicate matching this Pro + Work available + Windows Codex picker missing case was found before filing.

Related announcement: https://x.com/sama/status/2095973658867171733

Related catalog backport: https://github.com/openai/codex/pull/42605

Start by tracing how the Windows desktop model picker consumes the account-specific Codex catalog, comparing it with the bundled Astra definition and the catalog backport in PR #42605. Reproduce with a ChatGPT Pro account on codex-cli 0.153.1; done means GPT-6 Astra appears for an eligible account after a fresh sign-in and task.