Hey, this is a known bug. On the Opus 4.6/4.7 backend in Max mode, the context gets clamped to 200K instead of 1M. That’s why the context ring immediately shows 100% and triggers early summarization. We’re tracking the issue. I can’t share an exact ETA yet, but I’ll post an update in the thread as soon as we have a fix.
Similar reports for context:
- Opus 4.7 Max mode shows only 200K context instead of 1M
- Claude models stuck at 200k context window size.
As a temporary workaround, you can switch to Sonnet 4.6 in Max mode, or use Opus without Max until we fix the clamping.