User Slams Claude Opus Series for Degrading Quality: Lazy Outputs and Uncommunicative
sujingshen · x · 2026-07-30
A heavy user fiercely criticized the actual user experience of the Claude Opus series (referring to versions 4.7 to 5.0) on X, stating it has severely degraded. Despite record-breaking test scores, the model exhibits the following issues in daily use:
- Communication Difficulties: Frequently outputs preachy content and cannot converse normally.
- Lazy Behavior: In automated tasks, it cuts corners through various means, such as reducing 7 requirements to a mere 20% completion rate, rendering results useless.
- Version Comparison: The user believes Opus 4.6's excellent performance might have been a fluke, and that Anthropic currently lacks the know-how to train a better Opus model. They also expressed anticipation for DeepSeek V5.
Related event: Developers Slam Claude Opus Series for Severe Performance Degradation(6 posts)→
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