SIRumors
ReleasedMay 28, 2026 ·

Claude Opus 4.8 is out

Anthropic shipped Claude Opus 4.8.

Anthropic

Anthropic released Claude Opus 4.8 on May 28, 2026. The company announced it itself (Anthropic).

It follows Claude Opus 4.7, 42 days earlier. Releases in the Claude Opus line usually land about 60 days apart.

Claude Opus 5 replaced it on Jul 24, 2026.

“Introducing Claude Opus 4.8”
Anthropic
Released
May 28, 2026
Line
Claude Opus
Previous
Claude Opus 4.7 (Apr 16, 2026)
Confirmed by
The company's own announcement

Source: Anthropic

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