System cards/Anthropic/anthropic-claude-opus-4-5

Claude Opus 4.5

AnthropicClaude 4released 2025-09-25pending verification
Summary

Anthropic flagship model. ASL-3 deployment commitments active. Pending verification of exact card claims against the published PDF.

Deployment context

Claude.ai consumer + API + Enterprise

Capability classification (ASL)
ASL-3
Classified against v2.3of the lab's framework.
Eval categories
  • CBRN
    medium

    Pending verification

  • Cyber
    medium

    Pending verification

  • Autonomy
    medium

    Pending verification

Source

System card landing page: https://www.anthropic.com/news/claude-opus-4-5 ↗

PDF: https://assets.anthropic.com/m/87a8a8a35d3a4cd3/original/Claude-Opus-4-5-System-Card.pdf ↗

Not a substitute for reading the lab's published system card. Anteroom indexes, versions, and links. Verify exact wording against the primary source PDF before citing.