Testing Claude Opus 5 for App Building: Completion So Good It Might Beat Fable
FinanceYF5 · x · 2026-08-01
A developer tested Claude Opus 5 using a classic 'conversational calorie tracker' prompt. The results showed that the first version generated by Opus 5 exceeded expectations in UI, interaction, and overall completion. The performance was so impressive that it raised the question: is Opus 5 already better than Fable at building mobile apps?
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