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Fast Mode has disappeared from Codex App #17772
Description
What version of the Codex App are you using (From “About Codex” dialog)?
Version 26.409.20454 (1462)
What subscription do you have?
Pro
What platform is your computer?
Darwin 25.4.0 arm64 arm
What issue are you seeing?
There seems to be no way to enable fast mode within Codex App.
service_tier = "fast" in config.toml seems to only affect Codex CLI.
What steps can reproduce the bug?
Open Codex app. Try to enable fast mode via / command and + menu. Option to enable fast mode is no longer available.
What is the expected behavior?
No response
Additional information
No response
Activity
github-actions commentedon Apr 14, 2026
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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miraclebakelaser commentedon Apr 14, 2026
Not a dupe.
conacts commentedon Apr 14, 2026
Was the removal of fast mode a bug or done on purpose?
qiutao20 commentedon Apr 15, 2026
same problem on win 26.409.61251
miraclebakelaser commentedon Apr 17, 2026
I figured it out. It's because I'm using a custom
models.jsonfile to clean up my model picker (#13736 (comment)).Looks like codex app now picks up fast capability from
additional_speed_tiers(80ebc80).Adding this to my
models.jsonbrings back fast mode to codex app:codex/codex-rs/models-manager/models.json
Lines 119 to 121 in d0047de