Notion is a collaboration tool for notes, documents and project management, and Notion AI is its built-in AI feature. According to the official pricing page, the Free and Plus plans only allow a trial of Notion AI, and it is fully included starting with the Business plan.
Documents and presentationsA tool that uses AI to generate presentations, documents and web pages. The official pricing page lists Free, Plus, Pro and Ultra plans.
Documents and presentationsAn English writing checker and AI rewriting tool. The free version provides basic spelling and grammar checks and 100 AI prompts per month.
Documents and presentationsAn AI translation tool that can translate text and documents such as Word files, and also has a writing assistant, DeepL Write. It offers a free version and Pro paid plans.