My experience: I’m finding Anthropic software and the Opus 5 model to be a bit unstable and relatively inefficient. I’ve had sessions go wonky for no apparent reason using up excessive tokens while looping on its own errors. Opus 5 appears to understand coding and frameworks well but often gets lost when thinking about data structures and their consistency. Basic data quality and consistency requires diligent checking on my part. It also writes many scripts to accomplish its goals that can eat up costs in cloud environments. Its verbage is arcane and often very difficult to decipher. I’ve been using Antigravity and Gemini quite a bit. I’ve experienced occasional issues with hallucinations entering code. I’ve also had wonky sessions with Gemini. It definately doesn’t understand code and associated frameworks as well as Opus. Opus has solved some difficulties that Gemini struggled with. I find it good with UI and data. Its also fast and has been cost effective. It’s at its best when using solid design patterns with the Google stack and GCP. I shouldn’t complain as all of this is amazing. It is possible to get much more done though I don’t think I would use it at this point for programming medical devices or airplanes. I’m really trying to learn the ins and outs of prompting, agent harnesses, context engineering, etc. It really helps to have a solid understanding of software architecture and what you want to accomplish before asking a model to do anything. Life has really changed for developers of software. It’s fun and exciting but also frustrating dealing with stocasticism (is that a word?). submitted by /u/Colours-Break
Originally posted by u/Colours-Break on r/ClaudeCode