I regained good performance after deleting "Predictive Code Completion Model"...

It's fixed !

We are not alone https://developer.apple.com/forums/thread/740897

Same error here, with Version 15.0.1 (15A507) and Mac OS Sonoma 14.1 (23B74) on MacBook Pro M1 2020

I have the same issue, and the exact error code. Did you solve it ?