Developer finds Codex superior to Codeium Opus 5
deliprao · x · 2026-08-31
A developer complained that Codeium (CC) Opus 5 has recently become 'dumber' and prone to silly mistakes. After switching to Codex, they reported a much better experience, citing faster speeds and significantly better code and prose generation.
Related event: Developers Ditch Claude Opus 5 for OpenAI Codex After Quality Decline(3 posts)→
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