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Claude Opus 4.7 Got a Secret Upgrade—Here's What Changed in Its System Prompt

Claude Opus 4.7 Got a Secret Upgrade—Here's What Changed in Its System Prompt

Claude Opus 4.7 偷偷升級了——系統提示詞有什麼改變?

Anthropic quietly updated Claude Opus from version 4.6 to 4.7, and it turns out the system prompt—the hidden instructions that shape how the AI behaves—got some tweaks. We're breaking down exactly what changed and why it might matter for anyone relying on Claude for work. The differences are subtle but could affect how the model responds to edge cases, handles sensitive topics, and follows your instructions. If you're using Claude in production or for anything mission-critical, this is worth a quick read to see if the new version behaves differently than you expect.