Vibe Coding
Tip: /effort Now Saves a Default Per Model, and xhigh/max With Thinking Off No Longer Fails on Opus 5
2.1.251 changes `/effort` to save your default effort level per model, so switching models keeps each one's setting instead of carrying one global value across. The same release fixes Opus 5 requests failing with "effort … is not supported when thinking is disabled" when effort was xhigh or max and thinking was off; effort is now sent as `high` in that case. If you scripted around that error by forcing thinking on, you can drop the workaround.
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