Hallucination city, doing whatever it feels like and far more than what I've bargained for, and performance on par with Opus 4.8 for coding in a large production codebase. I still have far more success with GPT 5.5, it actually follows my instructions and doesn't try to automate my entire job, which allows me to build skills and pipelines around the things I actually want automated.
What was your particular experience with it?
Hallucination city, doing whatever it feels like and far more than what I've bargained for, and performance on par with Opus 4.8 for coding in a large production codebase. I still have far more success with GPT 5.5, it actually follows my instructions and doesn't try to automate my entire job, which allows me to build skills and pipelines around the things I actually want automated.