GPT 5 vs. Opus 4.1 for Vibe-Coded Apps
16 days ago
- #AI Comparison
- #Coding Apps
- #Full-Stack Development
- Comparison between GPT-5 and Opus 4.1 in building a full-stack chiptunes app.
- Both models successfully implemented auth, data models, permissions, and song creation flow.
- GPT-5 achieved song sharing in one attempt; Opus required two additional prompts.
- Opus had a slicker UI, while GPT-5 had mobile responsiveness issues.
- Both models made errors related to new features but fixed them quickly.
- Opus followed rules more closely, while GPT-5 explored more freely.
- GPT-5 wrote more unique code, sometimes simpler than examples provided.
- Significant improvement compared to a similar test conducted four months ago.
- Both models now produce apps with auth, permissions, and better UI.
- GPT-5 is closing the gap with Claude models in coding apps.