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?
More from coding & agent
- GitHub rewrote the 800k-line Copilot runtime in Rust using AI agents, cutting CPU and memory by over 90% — bibryam · 2026-10-16
- What's the hardest part of deploying AI in real businesses that nobody talks about — djgoel123 · 2026-10-16
- DeepMind turns coding agent Antigravity into a science tool, surfacing novel antimicrobial peptide in one session — pushmeet · 2026-10-16
- Cross-review coding workflow: Claude writes the plan, Codex audits it — theteknosaur · 2026-10-16
- NPCTalk makes GTA V NPCs conversable in ~1s, open-sourced for any game — ChocolateDull8971 · 2026-10-16
- Simon Willison: code mode is the future of tool calling, if it can be sandboxed — springrod · 2026-10-16