Lab system cards and frameworks · System card · Anthropic

System Card: Claude Opus 4.8

28 May 2026

This is version r1. The latest is r2.

Outline

The outline is kept for the latest version, r2. Open at p. 1

How to cite

A citation names the document, the version and the place.

anthropic:claude-opus-4-8-system-card/r1/p1

https://safetypage.noahairmet.com/d/anthropic/claude-opus-4-8-system-card/r1/p1

BibTeX

@misc{anthropic2026,
  title = {System Card: Claude Opus 4.8},
  author = {{Anthropic}},
  year = {2026},
  url = {https://www-cdn.anthropic.com/0b4915911bb0d19eca5b5ee635c80fef830a37ea.pdf}
}

Versions

Version	Published	Read
r2 latest	3 Jun 2026	At source
r1	28 May 2026	At source

Licence

So you: Search it, cite it and check quotes here; read it at its source