[linzhangrun]

No, the decline in GPT-5.5's performance over the past few weeks is clearly noticeable.

[cbg0]

Doesn't look like it: https://marginlab.ai/trackers/codex/

[rahidz]

So what are we to make of the two items:

- This tracker not showing any visible degradation. - Clearly incorrect answers being reported due to truncated thinking.

Is the tracker not measuring 'simpler' tasks that might get auto-sent to "low reasoning hell" even on high/xhigh? Is the clustering not actually causing reasoning misses in real-life coding, or not enough of a negative effect compared to the improvements made elsewhere? Something else?

[linzhangrun]

Thanks for sharing this project. Maybe I'm being subjective.

[memoriyato3]

its called hedonic adaptation - you get excited by a new model, but then the excitement disappears, and you confuse that with the model being nerfed

[mdgld]

Cool resource and perfect way to track this, thanks for sharing