Version history

Every shipped version of this model. Click a marker to open its release page.

Hollow markers open release pages. Scroll horizontally for older releases; labels stay fixed on the left.

AI Model

Claude Opus

Anthropic's most capable model for complex reasoning, coding, and agentic tasks.

Latest version:4.8Released

All Versions

Claude Opus 4.8

Released on May 28, 2026

Claude Opus 4.7

Released on April 16, 2026

Claude Opus 4.6

Released on February 5, 2026

Claude Opus 4

Released on May 22, 2025

Claude Opus 3

Released on March 4, 2024