I just stay with Opus-4.8 - because it's not like that Opus is not capable of solving all my daily tasks. It just works fine. Fable is of course better, especially on paper, but it didn't do wonders for me. I feel like Anthropic can't continue just making better models all the time, they will have to care efficiency more and more because that is what they lack the most. Just compare it to any other LLM, they are all way more efficient which means they are way faster and cost less money per token. So for me it's just wait and relax - use Opus-4.8 until Anthropics models hopefully become cheaper and faster.