I always give every new Claude model a solid try. I find myself only using Fable 5 and Sonnet 4.6 now though. Sometimes Haiku. It just naturally went that way. Opus 5 is really expensive because of how much it chats, and Sonnet 5 on low effort is dumber than Haiku but at Sonnet prices. Honestly I don’t know why they keep making mistakes like this.