After a full day testing Opus 5, the author sees little improvement
jiayuan_jy · x · 2026-07-26
The author says they spent a full day testing Opus 5 and did not notice any significant improvement.
Their takeaway is that it mostly just gets the job done, with performance feeling similar to GPT 5.6 sol and Opus 4.8.
Related event: Claude Opus 5 Early Tests: Better Efficiency but Overly Proactive(29 posts)→
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