... ChatGPT for brainstorming, Claude Code for implementation, Railway for execution. Just moved my AI app from Replit to Railway because Replit was burning $ real fast! Comment from Simona O'Neill(@simona_o_neill3): Currently , only ChatGPT & Codex in VS Code plus Vercel. I did use Claude initially to get the core structure of my app, but got really fed up with constant syntax errors so dropped it. I just launched my first solo built/ vibe coded app - 70Lives Beauty ... ... them compiled and chucked into an app for anyone to mess around with. Still just testing phase so don t send the whole internet my way yet haha, but here s the link for your perusal anyway: Project