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Dev.to
6/28/2026
The original title is "How I Built an AI Exam App in 8 Months to outsource studying"

The original title is "How I Built an AI Exam App in 8 Months to outsource studying"

Original: How I Built an AI Exam App in 8 Months to outsource studying

Short summary

A developer built examintelligence.app, an IGCSE exam study tool over 8 months—learning that unsupervised AI vibe-coding produces unmaintainable systems. Key insight: design architecture yourself, then hand off precise edits to agents. Final hybrid stack pairs Gemini 3.1 Flash-Lite for multimodal PDF parsing with Qwen 3.6 for routing, achieving production-grade quality at acceptable speed.

  • •Vibe-coded AI produces unmaintainable code; successful products require human-authored architecture
  • •Hybrid architecture pairs Gemini 3.1 Flash-Lite (multimodal) with Qwen 3.6 (routing) for production performance
  • •Author used agent strategy of precise edits rather than wholesale generation to maintain codebase quality

Generated with AI, which can make mistakes.

#ai-tools#ai-agents#product-launch#research-breakthrough
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