I have worked with most all of Anthropics LLM's for development, but hands down Opus 4.8 has caused me more grief, aggravation, and it lies in every thing it does - especially near context mid-load and if you're doing deterministic work with no heuristics constraints you can't trust a thing out of it. So I stopped using it a while back, but today I had to do a container rebuild and in VS it slipped back into Opus 4.8 from Sonnet. And without even realizing the switch happen I could tell about a ...