Users of Anthropic's Claude Code Opus 5 have reported a noticeable decline in output quality over the past 24 hours. The changes include increased verbosity, stylistic shifts, and greater redundancy within paragraphs. Some users speculate this degradation might be linked to the implementation of a new watermarking system. AI
IMPACT Potential degradation in model performance could impact user workflows and trust in the model's capabilities.
RANK_REASON User reports and speculation about a model's performance change, not an official release or benchmark.
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