GPT-5.3-Codex vs GPT-5.5 for job applications

**Subject:** Reference request for [Role] application (deadline Friday)

Hi [Manager Name],  
I hope you’re well. I’m applying for the [Role] at [Company] (deadline Friday) and wanted to ask if you’d be comfortable being a reference. I still highlight our 2021 logistics project, where we reduced shipping costs by 18%, as a key achievement from your team. If now isn’t a good time, please feel free to decline—no problem at all. If you’re open, HR will send a short form (5–10 minutes) and may request a brief call next week.  

Thank you!

Subject: Reference request for [Role] application

Hi [Name],

I hope you’re well. I’m applying for [Role] at [Company] (deadline Friday) and wondered if you’d be comfortable being a reference. I still value what we achieved on [Project]—especially delivering the client dashboard two weeks early and cutting manual reporting time by 30%.

If you’re too busy or don’t feel able to, no worries at all. If yes, they’ll email you a short reference form asking about my role, strengths, and work style.

Thanks,  
[Your Name]