Codex Windows app: Voice mode fails — “Unable to start dictation”
Open 💬 4 comments Opened Mar 5, 2026 by sumant4ssm
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of the Codex App are you using (From “About Codex” dialog)?
Codex 26.304.1528
What subscription do you have?
Business
What platform is your computer?
Microsoft Windows NT 10.0.26200.0 x64
What issue are you seeing?
Voice mode/dictation cannot start in the Codex Windows app. Error shown: “Unable to start dictation.”
What steps can reproduce the bug?
Steps to reproduce
- Open the Codex app on Windows.
- Open any chat/session.
- Click Voice / start dictation.
- Observe error
What is the expected behavior?
Expected behavior
Dictation starts and captures the microphone audio.
Additional information
_No response_
4 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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Also running into the same issue on Codex 26.313.41514
I think this might still be an issue? At least I keep getting the same error as well
Hasn't resolved for me yet