Here's the truth about when to use each.
VIBE CODING (Fast to start, slow to scale)
Good for:
- Landing pages (30 min)
- Quick prototypes (1-2 hours)
- Single features (add a button, dark mode)
Bad for:
- Anything with 3+ interconnected features
- Production apps
- Code you need to maintain
SPEC CODING (Fast to scale)
Built by our community in weeks:
- Complete SaaS with auth + payments (2 weeks)
- E-commerce platform (3 weeks)
- Mobile apps with offline support (4 weeks)
- API services with tests (1-2 weeks)
- AI-powered tools (2-3 weeks)
The difference?
Vibe coding: Week 1 feels fast. Week 4 you're rewriting everything.
Spec coding: Week 1 feels slow (planning). Week 3 you're deployed.
Simple rule:
Prototype → Vibe coding
Product → Spec coding
The bottleneck isn't ideas. It's implementation capacity.
Spec coding gives you sustainable velocity.
What are you building? 👇