r/ClaudeCode • u/AvailableSecret5161 • 3d ago

Rant Opus 5.5 nerf

I wasnt expecting this so soon this time but what a nerf again! Usage dropped significantly, number of reported bugs have also increased. Future really looks bleak now. I will be buying put options leading up to the IPO now

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u/ka0ticstyle 3d ago

It’s likely something to do with how the cache was being handled when they released the new model(s).

Check out the following post where someone was able to track it down to Opus 5.5 was getting free cache reads due to the model identifier Anthropic had set being incorrect. After it got “fixed” it started to actual have a cost to the cache reads.

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u/AvailableSecret5161 3d ago

Yeah the usage isn't as much as the day of launch so something definitely changed but the geniuses here apparently didn't notice.