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Crazy. I just changed the default for our entire org to Opus because people were continually unimpressed with Sonnet's abilities. It's fascinating to think how varied people's experiences are when interacting with LLMs and how much the outcomes depend on how people approach interacting with the models.

Yeah I think people are sleeping on the smaller/faster models like Sonnet. As long as you have a detailed plan or small, well scoped individual tasks Sonnet can implement just fine. Opus will still do better at more open ended tasks or completely "vibe coding." Or spec/plan with Opus, and have Sonnet implement.

I was surprised to learn that Sonnet generally has the same tokens per second as Opus

I would indeed be more inclined to use it if the tokens per second were better. Though I would be then using their more expensive Opus less though. Perhaps it is strategy.

They should add a Sonnet 5 fast mode at ~Opus pricing

It's a 30% price increase once the discount rate vanishes.