> I’ve been using Anthropic models exclusively for the last month on a large, realistic codebase, and I can count the number of times I needed to use Opus on one hand. Most of the time, Haiku is fine. About 10% of the time I splurge for Sonnet, and honestly, even some of those are unnecessary.
You and I couldn't have more different experiences. Opus 4.7 on the max setting still gets lost and chokes on a lot of my tasks.
I switch to Sonnet for simpler tasks like refactoring where I can lay out all of the expectations in detail, but even with Opus 4.7 I can often go through my entire 5-hour credit limit just trying to get it to converge on a reasonable plan. This is in a medium size codebase.
For the people putting together simple web apps using Sonnet with a mix of Haiku might be fine, but we have a long way to go with LLMs before even the SOTA models are trustworthy for complex tasks.