reasoning.summary not supported with gpt-5.3-codex-spark
Open 💬 3 comments Opened Jun 5, 2026 by coalio
What version of Codex CLI is running?
0.137.0
What subscription do you have?
Pro
Which model were you using?
gpt-5.3.codex-spark
What platform is your computer?
Linux 6.6.87.2-microsoft-standard-WSL2 x86_64 x86_64
What terminal emulator and version are you using (if applicable)?
Neovide
Codex doctor report
What issue are you seeing?
reasoning.summary crashes on models that don't support it or use the older apis
Uploaded thread: 019e98e5-0eeb-70d1-b905-6173572a883c
What steps can reproduce the bug?
Uploaded thread: 019e98e5-0eeb-70d1-b905-6173572a883c
What is the expected behavior?
_No response_
Additional information
_No response_
This issue has 3 comments on GitHub. Read the full discussion on GitHub ↗