>Why do their models always get Nerf'ed? Is Anthropic doing planned obsolescence or are they trying to encourage use of their latest models? Opus 5.5 was clearly Nerf'ed last week. I think they are at risk of getting a class action lawsuit for deceptive practices with this unannounced "model optimization" that actually changes performance as compared to the advertised performance in the official model cards.

You have psychosis my friend. They don't nerf the models.