GPT-5.4 launched as the most powerful model ever... and I switched back to Claude in a week
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After a week of exclusive use, the author switched back from GPT-5.4 to Claude, arguing that raw benchmark performance matters less than workflow fit, ecosystem quality, and model personality. Key reasons include Claude's better SWE-Bench coding scores, a richer third-party ecosystem of community-built tools, and a preference for Claude's more technical and concise output style over GPT's emoji-heavy, bullet-point-heavy responses. The author also notes GPT-5.4's larger context window as its main advantage, but works around it by piping output to Claude for analysis.
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It doesn't matter to me which is more powerfulBenchmarks of frontier models don't tell the whole storySort: