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GPT Web App Generator - 10,000 apps created in a month: Matija Sosic
Takeaway
Constraining the codegen target (Wasp + React/Node) and tiering GPT-4 planning with GPT-3.5 implementation produces cheap, reliable full-stack app generation.
Summary
- Mage generated 10,000+ React/Node/Prisma full-stack apps in a month, glued by the Wasp high-level config framework
- Three-phase agent: planning (GPT-4), code generation (GPT-3.5), error-fixing loop; mixing model tiers cuts cost ~10x to $0.10-0.20/app vs $0.80-10 for less guided agents
- Wasp's declarative config + 'Step 0' boilerplate generation reduces error surface; common errors (default vs named imports) fixed with heuristics, no LLM
- Comparable competing free-form agents cost up to $10/app for similar output
code-generationwaspgpt
Original description
About the tool: Describe your web app idea using plain English, and GPT Web App Generator will scaffold the complete, full-stack app for you, along with all the source code! The code is generated in React, Node.js, Prisma & Wasp. We will talk about how we built it (technical challenges) and how the community responded - 10k apps, #2 on PH devtools, ... Recorded & streamed live for the AI Engineer Summit 2023. See the full schedule of talks at https://ai.engineer/summit/schedule & join us at the AI Engineer World's Fair in 2024! Get your tickets today at https://ai.engineer/worlds-fair About Matija Matija is the CEO & co-founder of Wasp together with his twin brother. This is the second startup they started together, funded by Y Combinator and top deep tech funds in 2021. Matija's background is an MSc in Computer Science from the University of Zagreb. His previous work spans from a research institute in Singapore to top-growing startups in NYC and London, covering fields of bioinformatics, mobile, and web development.