Wordtune is an AI-powered writing assistant developed by AI21 Labs that helps users rewrite, rephrase, and improve their text in real time. Founded in 2018 by Ori Goshen, Yoav Shoham, and Amnon Shashua, AI21 Labs is headquartered in Tel Aviv, Israel, and Wordtune was launched as the company's consumer-facing product. The platform uses large language models to understand the meaning and context of written text, offering intelligent suggestions for rephrasing sentences, adjusting tone, shortening or expanding content, and improving clarity and readability. Wordtune's core rewriting features include options to make text more casual or formal, shorten verbose sentences, expand brief statements into more detailed explanations, and generate alternative phrasings that convey the same meaning with different word choices. The platform includes Wordtune Read, a feature designed for processing long documents, articles, and PDFs by generating AI summaries and allowing users to ask questions about the content to extract specific information quickly. Wordtune also offers Wordtune Editor, a full writing workspace where users can draft content from scratch with AI assistance, generate text continuations, and get real-time suggestions as they type. The platform provides grammar and spelling correction alongside its rewriting capabilities. Wordtune Spices is a feature that generates creative additions to text, including statistical facts, analogies, examples, and counterarguments to strengthen writing. The platform is available as a browser extension for Chrome and Edge, as well as integrations with popular writing environments. Wordtune operates on a freemium model with a free plan that provides limited rewrites per day. The Plus plan costs approximately $13.99 per month and includes unlimited rewrites, Wordtune Read access with higher document limits, and premium rewriting features. Business and Enterprise plans are available for teams requiring collaboration tools, admin controls, and dedicated support.

AI 语法检查工具

Wordtune在其改写功能之外还包括语法和拼写纠正功能，在用户写作时实时识别和修复错误。该工具提供超越简单规则检查的上下文语法建议，使用AI理解句子含义并建议改正，以改进准确性和可读性。

AI 改写工具

Wordtune是一个AI改写工具，使用大型语言模型在保留原意的同时生成智能的句子改写。用户可以调整改写以适应随意或正式的语调，缩短或扩展文本，并为任何选定的句子获得多个替代表述，是现有最具上下文感知能力的改写工具之一。

AI 摘要工具

Wordtune Read使用户能够通过生成AI驱动的摘要和允许对内容进行自然语言提问来处理长文档、文章和PDF。该功能为研究工作流程而设计，用户可以从冗长的材料中快速提取关键信息，而无需阅读每一个词。

AI 写作工具

Wordtune通过其编辑工作区提供全面的AI写作协助，用户可以在其中使用AI驱动的文本续写、实时改写建议、语法纠正和"调味料"功能（生成支持事实、类比和示例）来起草内容。该平台支持从初始起草到最终润色的整个写作过程。