itsrouk/your-ai-focus-group

Your AI Focus Group is a web app that lets you test a product idea, tagline, or pitch by interviewing a panel of AI-generated personas and receiving a scored summary of what worked and what did not. The whole process takes a few minutes and runs free with a Google Gemini API key. When you open the app, you describe what you want to test. The tool rewrites your input to remove specific brand names, so the AI personas evaluate the concept and category rather than reacting to a known brand. It then generates ten synthetic personas shaped around your context. You pick three to five that match your target audience, and those become your focus group panel. You can ask up to five open-ended questions. Each persona reads and responds to each question one at a time rather than all at once, which the author designed to feel more like a real conversation. After the interview, each response receives a score on a 1-to-5 scale using a method called follow-up Likert rating. You get a scorecard that shows which responses landed well, which drew pushback or low interest, how much the panel agreed across responses, and the recurring themes from their answers. You can also copy the full transcript as plain text. The app is built with Next.js 14 and TypeScript, uses Tailwind CSS for styling, and calls Google Gemini 2.5 Flash to generate the personas and their responses. State is managed with React's built-in useReducer without any external state library. To run it locally, you clone the repository, install dependencies with pnpm, add a free Gemini API key to a .env.local file, and start the dev server. The project is licensed under MIT.