Great work! but I’ve run into a strange issue. When I use gpt-5-codex and gpt-5.1 everything works normally, but when I switch to gpt-5.1-codex, Cursor produces no output.
Hi @DanYang_Liu, I will try to investigate the issue tomorrow and update the supported models section.
edit: issue solved, gpt-5.1-coxed is now supported, see next comment
Hi @DanYang_Liu , indeed it seems like gpt-5.1-codex and gpt-5.1-codex-mini are broken. Azure gives this error message:
I’ve updated the project to show those error messages instead of producing no output, thanks for reporting the issue!
I’ve also updated the supported models section of the readme, and during the weekend I will try to isolate the issue further to confirm it’s on Azure’s end. I will update here with any findings.
I narrowed down the issue to the truncation parameter that was being set to auto by default, which caused issues only with those two models. I’ve changed the default to disabled, and updated the readme to reflect the change:
After pulling the project, you should be able to use gpt-5.1-codex. Happy codexing!

