I’m on a pro plan and have used Sonnet 4.5 for most of my work. I found it to be working really well when under tight supervision in brownfield projects. Today I had a look at Sonnet 4.6 and the difference was night and day. 4.6 burned a shitton of tokens and produced objectively worse results than Sonnet 4.5. It read in the whole project many times despite being told to not do so. It made a lot of small mistakes. In the end I got one or two features implemented before hitting the limit where I could easily do four or five with Sonnet 4.5. I switched back to 4.5 now, but this is no good sign. It would appear these new 4.6 models were deliberately trained to burn tokens like hell. The “here have $50 to try out our new models” thing also would indicate that Anthropic was aware of this and tried to soften the blow. But at this rate, its just becoming unsustainable. What are your experiences with Sonnet 4.6? submitted by /u/derkork
Originally posted by u/derkork on r/ClaudeCode
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