Yeah that happened to me with Claude code opus 4.6 1M for the first time today. I had to check the model hadn’t changed. It was weird. I was imagining that maybe anthropic have a way of deciding how much resource a user actually gets and they had downgraded me suddenly or something.
Claude Code recently downgraded the default thinking level to “medium”, so it’s worth checking your settings.
Thank you. The difference was quite noticeable today.