Codex App is misreporting the state of /fast mode

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

Version 26.311.21342 (993)

What subscription do you have?

Pro

What platform is your computer?

Darwin 25.3.0 arm64 arm

What issue are you seeing?

The state of fast mode is not obvious in Codex App. In my case, I used Codex App all day thinking that fast mode was off, because UI shows it as off. However, I later opened up my config.toml and noticed that service_tier = "fast".

Changing the service_tier setting in config.toml changes the visible state in Codex CLI, but not in Codex App. Codex App is either 1) not adhering to the service_tier config in config.toml or is 2) misreporting its state.

If it's #2, then I've been unwittingly getting charged on 2x on my usage.

What steps can reproduce the bug?

Quit Codex App.

Set service_tier = "fast" in config.toml.

Open Codex app. Fast mode is reported as Off.

What is the expected behavior?

config.toml should be the the source of truth for all shared settings. There is currently too much drift between how Codex App and Codex CLI uses config.toml.

More examples of config drift:

• Codex App ignores developer_instructions (https://github.com/openai/codex/issues/11004 )
• When personality = "none", Codex App reports it as "friendly".

Additional information

_No response_