Claude Opus 5.5 at medium effort matches Opus 5 at high effort, guide says
minchoi · x · 2026-10-28
Tip #1: Claude Opus 5.5 at medium thinking effort matches or outperforms Opus 5 at high effort on many tasks. Start with medium, test low for speed, and reserve xhigh/max only for tasks where you measure better results.
Related event: Anthropic publishes official prompting best practices for Claude Opus 5.5(13 posts)→
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