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SourceScore VERITAS · verified claim
100% confidence
Anthropic Claude Opus 4 released on: 2025-05-22 by Anthropic.
Subject
Anthropic Claude Opus 4
Predicate
released_on
Object
2025-05-22 by Anthropic
Primary source · official blog · 2025-05-22
Introducing Claude 4
— Anthropic
Last verified 2026-05-16 · 2 sources · 227ecd38519af6c8
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