Rytr

Rytr is an AI writing assistant designed to help users generate various forms of content quickly and efficiently. It offers features like content generation for over 40 use cases, tone matching to mirror a user's writing style, and tools for text editing and improvement. Additionally, it includes a plagiarism checker and a browser extension for seamless integration into writing workflows.

Rytr aligns well with the concept of an AI writing assistant offering various tools. It provides a guided interface through its 'use cases' and templates, which function as specialized tools. It offers creative presets and styles through its 'tone of voice' feature. The website clearly categorizes its 40+ use cases, fulfilling the tool catalog requirement. User authentication and subscription tiers are explicitly detailed on the pricing page. While it doesn't explicitly state multi-model integration, it's a common underlying technology for such platforms. It also offers API access and multi-language support.