Comment by HyperL0gi
2 hours ago
Exact same thing here.
Both evals and Human pairwise tests for our use case are giving Haiku 4.5 first place in pretty much all tests.
No we'll try understand if we need to change our prompts to match performance ...
edit: maybe this will help: https://platform.claude.com/docs/en/build-with-claude/prompt...
Thx I’m digging into it but am somewhat comforted not to be alone in this. Turning up the level helps some but then we lose the speed. I don’t know that we’ll switch to 5.5 and may shop a different provider.
Anecdotally we ran sonnet 4.6 for our more complex stuff and sonnet 5 was a LOT worse. 5.5 seems to have fixed it and we cut over our customer workloads. It’s strange, really.