BanterBird

Draft replies and posts on X in your own voice, with your OpenAI key. You review, edit, and post every one yourself.

BanterBird — write sharper replies and posts on X, in your own voice. BanterBird is an AI writing assistant for X (Twitter). Pick a post and it drafts a thoughtful reply using your own OpenAI API key — one that actually sounds like you. You stay in full control: review it, edit it, and post it yourself. Nothing is posted automatically. Sound like you, not a bot - Tell BanterBird about yourself and describe your writing style - Paste a few of your own posts as examples — it mirrors your voice (never copies) - "Suggest a style" reads your examples and drafts a style note for you - "Test your voice" previews a reply before you ever touch a post Shape every reply - Reply types pick what a reply does: Hot take, Genuine question, Observation, Story, or Counter — switch with one click - Make your own: add custom reply types with your own name and instruction - Choose which types show as chips, separately for replies and for posts Compose original posts - Give BanterBird an idea and a post type, and it drafts a few original posts in your voice — ready to copy or post to X What else you get - One-keystroke reply suggestions for any post - Thread-aware: it reads the conversation and targets the post you're replying to - A draggable, collapsible navigator (vertical or horizontal) to move through posts - Dismiss any suggestion with a single click - Your choice of OpenAI model - Optional "Why this" reasoning behind each suggestion Private by design - Bring your own OpenAI API key — stored locally in your browser - No accounts, no tracking, no analytics - Your key and the posts you reply to are sent only to OpenAI — never to us BanterBird is an independent tool and is not affiliated with X Corp. You review and post every reply yourself; use it responsibly and in line with X's rules.