Claude Opus 4.5: current verification was unavailable; empty specification fields and benchmark arrays indicate missing verification, not documented removal

The OnAirToday AI Progress Tracker recorded a verified change to Anthropic's Claude Opus 4.5 (version claude-opus-4-5-20251101): Current verification was unavailable; empty specification fields and benchmark arrays indicate missing verification, not documented removal.

Claude Opus 4.5 is the Anthropic model identified by the supplied snapshot; live source retrieval is unavailable in this session, so its current specifications, pricing, benchmarks and availability could not be independently rechecked. The supplied September 2026 coverage describes newer Claude versions and family-level security incidents, but does not establish Opus 4.5 involvement in those incidents.

What changed in this review:

• Replaced unsupported zero prices with null; current documented pricing remains unverified.
• Added two distinct reported family-level security cases, explicitly separating them from Opus 4.5.
• Supplied coverage reports newer Opus generations, including 5.5; their release status was not independently verified.
• Risks and threats updated

Teams building on Claude Opus 4.5 should confirm limits, pricing and benchmark coverage against the vendor's own documentation before relying on these figures.

The full profile — capabilities, benchmark citations, known flaws and risk guidance — is on the tracker at /ai-models/claude-opus-4-5.

References:

• https://www.anthropic.com/news/claude-opus-4-5
• https://thehackernews.com/2026/09/claude-opus-5-helped-researchers-take.html
• https://www.theverge.com/ai-artificial-intelligence/997444/openai-hack-claude-heif-heist
• https://thehackernews.com/2026/09/anthropic-ai-models-breached-real.html