Claude Code creator: Opus 5.5 does a month of work in a day — and your old prompts now backfire

VeryWellVersed · x · 2026-10-12

Boris Cherny, creator of Claude Code, says in a 12-minute interview that Opus 5.5 can do in a day what used to take a team a month — but most people are still using it wrong. He argues Opus 5.5 needs less prompting than any model before it, and the old style of detailed prompts now works against you.

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