Question: Is there a collaborative writing platform that offers advanced features like data-driven insights and API access for professional writers and editors?

If you're looking for a collaborative writing tool with some bells and whistles, Bit.ai is worth a look. It's got AI-powered document collaboration tools like AI Genius Assistant Writer, custom templates and real-time analytics. With tools like interactive living documents, smart editor and 100+ rich integrations, Bit.ai supports multiple authors and guests, so it's good for collaborative writing and editing.

Another good option is TextCortex, an AI-powered tool that pools the expertise of multiple people to generate real-time insights from the web. It's got features like generative search, customizable style and integration with more than 30,000 apps and websites. TextCortex is designed to help people overcome creative blocks and to save time writing, so it's good for freelancers, businesspeople and academics.

If you're focused on content creation and marketing, Jasper offers tools for collaboration and optimization. The service includes analytics insights, a company knowledge base and AI-powered content generation, which can be useful for marketing campaigns and keeping a consistent brand voice. Jasper is good for content creators and marketing teams looking to boost productivity.

Last, Narrato is an all-in-one content creation platform with AI tools geared for content marketers, writers and teams. It's got content workflow automation, collaboration tools and a variety of AI templates and assistants. Narrato is designed to make content creation faster and more efficient, and to cut costs by a lot.