AsOf

Claude · model releaseClaude Opus 4.5

validasserted
Valid from
2025-11-24
Valid until
still holds
Published
2025-11-24
Recorded by AsOf
2026-10-31
Checked
2026-10-31 · its source page states the value and the date
Confidence
0.70

Sources

“November 24, 2025 Claude Opus 4.5 launch We released our most powerful frontier model to date. Read our blog post for more information: Introducing Claude Opus 4.5 .”— what the page says, read 2026-10-31