[r/ClaudeAI] Opus lost his capability

Original poster: u/renanmalato
Original publication time: 2026-06-26 20:52:00 UTC
Original title: Opus lost his capability
Original flair: Claude Workflow
Original URL/media URL: https://www.reddit.com/r/ClaudeAI/comments/1ugiom1/opus_lost_his_capability/

Original post body:

I was testing making simple questions about World Cup today – and Claude Opus 4.8 - got a complete bracket wrong stating that Germany was eliminated after lost to Ecuador – leading into a cascade of other bad results answers in the context.

What is going on?