Cowriter

Cowriter is an AI-powered writing platform that combines a text editor with intelligent content generation to support a wide range of writing tasks. Users can draft, expand, rewrite, and refine text directly within the editor, with AI assistance available at each step. The tool can generate structured content for blogs, articles, essays, newsletters, emails, social media posts, and ad copy based on prompts, outlines, or existing drafts.

Key capabilities include idea generation, headline and title suggestions, paragraph expansion, tone adjustment, and grammar and clarity improvements. Cowriter can help transform bullet points into coherent prose, summarize longer pieces, and adapt content for different audiences or channels. The interface is designed to keep writers in control: users can accept, edit, or discard AI suggestions, iteratively improving their work while maintaining their own voice.