User Reports Hallucinations in Claude 3.5 Opus 5.0
July 30, 2026
Users report increased hallucination rates and incorrect assumptions in Claude 3.5 Opus code generation compared to previous versions. The feedback suggests a regression in coding reliability for the 5.0 iteration.
HOW THIS AFFECTS YOU
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builderVerify your code-generation workflows if you are currently relying on the latest Opus update.