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Claude Opus 5.5: The System Card

A real newsletter email from Zvi Mowshowitz. Captured September 23, 2026.

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Captured Newsletter

Zvi Mowshowitz provides a detailed review and analysis of the Claude Opus 5.5 system card.

Standard long-form newsletter layout with minimal branding, text-heavy formatting, embedded data charts, and a table of contents.

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