Old version
July 8, 2026 00:08 UTC
0ce49aa473c3037455b45579980fd0b55708c1066df3f5f99f92bb3169d9b9b7
CA-V-004582
New version
July 14, 2026 00:10 UTC
33573adb9f1871b903f79b77d7755a44cc20bb913ef48ac9000ddb090e41f7ed
CA-V-004848
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Change Summary
Anthropic updated its Claude Sonnet 5 System Card on July 14, 2026, making 251 sentence-level modifications throughout the document. The changes include the addition of a Changelog section documenting an update from July 10, 2026, and numerous formatting adjustments such as corrected spacing, punctuation, and pagination. The document continues to describe Claude Sonnet 5's risk profile across alignment, chemical/biological, cyber, and other safety domains, with no apparent changes to the substantive safety findings or risk assessments themselves.
low severity

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