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LiveUpdated 2026-09-22 18:12 UTC

https://www-cdn.anthropic.com/fc1b44717c85dc068bc6ba5024219938094694bd/Claude%20Opus%205.…

Opus 5.5 System Card…

This is a AI post classified by Jev as Frontier models (a free resource), kept by the AI Radar because it carries real work, not commentary.

Opus 5.5 System Card https://www-cdn.anthropic.com/fc1b44717c85dc068bc6ba5024219938094694bd/Claude%20Opus%205.5%20System%20Card.pdf

Posted by Lisan al Gaib (59.3k followers) 2 h ago · 86 likes · 61.3k views · view the original post on X. Kept by the AI Radar as Frontier models. Tools mentioned: www-cdn.anthropic.com.

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Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 42.6k posts from 5k X accounts over the last 14 days, 1.8k tools, 19 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-22 18:12 UTC. Full method.