Developer Switches from Opus 5 to Codex Citing Better Performance
sirbayes · x · 2026-08-31
A developer reported dissatisfaction with Claude Opus 5, citing recent regressions in intelligence and frequent silly mistakes like omitting logging in long-running jobs. After switching back to OpenAI Codex, the developer found it to be faster, significantly better at writing prose, and superior at code generation.
Related event: Developers Ditch Claude Opus 5 for OpenAI Codex After Quality Decline(3 posts)→
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