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A 680,000-LINE MIGRATION THAT WOULD HAVE TAKEN A TEAM WEEKS

A 680,000-LINE MIGRATION THAT WOULD HAVE TAKEN A TEAM WEEKS CLAUDE OPUS 5.5 FINISHED IT IN UNDER A DAY Anthropic…

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

A 680,000-LINE MIGRATION THAT WOULD HAVE TAKEN A TEAM WEEKS CLAUDE OPUS 5.5 FINISHED IT IN UNDER A DAY Anthropic shipped Opus 5.5 today frontier results, 40% cheaper than Opus 5 it leads on agentic coding, computer use and knowledge work: > Terminal-Bench 4.0 - 66.4% vs 52.3% for Opus 5 > GDPval-AA v2.1 - 1846 vs 1735 for Fable 5.1 > cache reads $0.20 per million, 60% cheaper > output comes out 30% faster but the story I keep coming back to is the audit one tester fixed a 200,000-line codebase in under three hours Opus 5 needed over 20 hours and 2.5x the tokens on the same job seventeen h

Posted by Mr. Buzzoni (24.4k followers) 1 h ago · 34 likes · 1.1k views · view the original post on X. Kept by the AI Radar as Frontier models.

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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.