This article reports on the news that AI startup Writer has secured $100 million in a Series B funding round. Writer is a generative content platform headquartered in San Francisco, offering content creation solutions for enterprise clients through its self-developed large language models, covering documents for editing, operations, product, sales, and more. Writer's products are based on its proprietary large language model PALMYRA and knowledge graph, capable of generating various professional documents while integrating corporate data sources to produce high-quality content that complies with industry regulations. This funding round has valued Writer at over $500 million. Writer's competitive advantages lie in data privacy protection, low costs, and industry customization. Moving forward, Writer plans to develop industry-specific models and expand its business scope.