Claude Opus 4.5: verification-status update only: no current specification, availability, pricing or benchmark change was independently established

The OnAirToday AI Progress Tracker recorded a verified change to Anthropic's Claude Opus 4.5 (version claude-opus-4-5-20251101): Verification-status update only: no current specification, availability, pricing or benchmark change was independently established.

Claude Opus 4.5 is the Anthropic model identified in the supplied snapshot, but live source access was unavailable, so its current specifications, pricing, availability and benchmarks could not be independently rechecked. The incidents below reflect supplied reporting, not primary-source verification, and do not establish involvement or a safeguard failure specific to Opus 4.5.

What changed in this review:

• Replaced unsupported zero prices with null; unknown pricing must not imply free access.
• Withheld unrechecked release timing, context limits and benchmark figures rather than presenting them as verified.
• Added five distinct cases from supplied reporting, with explicit model-attribution and verification limitations.
• Supplied coverage names later family versions, but their release status was not independently verified.
• Excluded incident-count recaps, product launches, benchmark coverage and a vulnerability report that did not establish exploitation.
• 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://thehackernews.com/2026/07/anthropic-says-claude-mistook-open.html
• https://thehackernews.com/2026/04/new-wave-of-dprk-attacks-uses-ai.html