Sudowrite

Notion AI embeds writing, summarising and Q&A directly inside the Notion workspace millions already use for notes, docs and wikis. It can draft content, summarise pages, extract action items and answer questions across your connected knowledge. The value lies in AI that understands the context of your existing workspace.

Jasper is an enterprise marketing-copy platform built to keep AI output on-brand at scale. It offers brand voice training, campaign workflows, templates and team collaboration tailored to marketing teams. Jasper sits above generic chatbots by focusing squarely on marketing operations and brand consistency.

Character.ai lets users chat with millions of user-created AI personas, from historical figures to original fictional characters. Its strength is immersive, in-character roleplay and entertainment rather than productivity. A massive community continuously creates and shares characters, making it one of the most engaging consumer AI platforms.

Wordtune, from AI21 Labs, focuses on rewriting and refining your own sentences rather than generating content from scratch. It offers rephrasing, tone shifts, shortening, expanding and summarisation in a lightweight browser extension. It suits writers who want to keep their voice while polishing clarity and flow.