FastPost AI - Reply in Your Voice

Reply on X in your exact voice. FastPost learns how you write and generates replies that sound like you in seconds

Growing on X takes consistency. The hard part is showing up every day. FastPost AI puts an AI button inside X, next to every reply box and composer. Click it, pick a tone, and get a reply that sounds like you in seconds. The people gaining followers fast on X are the ones who reply first and post often. This makes that effortless. - Reply to any tweet in seconds in your own voice - Pick a tone: agree, push back, ask a question, be funny - Add quick instructions before generating ("keep it short", "mention I'm a founder") - Works on replies, quote tweets, and new posts - Inline — never leave X How to get started: 1. Create an account at fastpost-ai.vercel.app 2. Paste a few of your old posts. we analyze your writing style 3. Install this extension 4. Go to X, click the FastPost AI button next to any reply box, and generate fastpost-ai.vercel.app