I built a SaaS in a month with Claude. Here is what actually happened.

Short summary

Author built VerrixAI, a contract-analysis SaaS using Claude Sonnet 4.6, solo in one month. Cost per scan: ~A$0.07 (Sonnet pricing), with tiered pricing from 3 free scans to $15/month for 250 scans. Key learnings: AI-assisted coding requires rigorous end-to-end testing since Claude hallucinates APIs; Supabase JS 2.39+ has promise-resolution bugs fixed by pinning to 2.38.4 and clearing localStorage on auth changes.

• •Built contract-analysis SaaS solo in one month using Claude Sonnet 4.6
• •Unit economics work at scale: ~A$0.07/scan with sustainable tiered pricing ($0 to $15/mo)
• •AI-assisted coding requires human verification—Claude hallucinates APIs and defaults to outdated patterns

Generated with AI, which can make mistakes.