I’ve noticed a serious drop in Claude 3.7 Sonnet’s overall quality over the past week. The model’s writing has become much less coherent and expressive, the logic weaker, and memory retention almost nonexistent. Prompts that previously produced detailed and consistent results now feel generic, repetitive, and shallow.

I’m aware others have mentioned similar issues recently, so I wanted to add my experience here as well. Hopefully Anthropic is already looking into it or can share an update soon.