Dev Critiques Claude Opus: Brilliant but Lacks Rigor, Only Does What It Wants

heyneighbor · x · 2026-07-30

A developer shared their experience using the Claude 3 Opus model, noting that while it is incredibly smart and capable, it acts as an "incredibly unserious" engineering partner.

The main issue is a lack of rigor: the model cannot be trusted to follow instructions or execute specific jobs correctly. While it excels at doing the job it wants to do, it stops there, making it unreliable for strict engineering tasks.

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