ReleasedMay 22, 2025 ·
Claude Opus 4 is out
Anthropic shipped Claude Opus 4.
AnthropicAnthropic released Claude Opus 4 on May 22, 2025.
It follows Claude 3 Opus, 444 days earlier. Releases in the Claude Opus line usually land about 60 days apart.
Claude Opus 4.1 replaced it on Aug 5, 2025.
Released
May 22, 2025
Line
Claude Opus
Previous
Claude 3 Opus (Mar 4, 2024)
Confirmed by
Historical record
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