List of the Top 9 On-Prem AI Writing Software in 2025

ONLYOFFICE Docs serves as a robust and secure online office suite tailored for teams and companies of all dimensions. Users can create and modify documents, spreadsheets, presentations, fillable forms, and PDFs seamlessly. The platform allows for real-time collaboration among team members through two co-editing modes, along with features like version history and various other tools. By enabling your preferred AI assistant—such as ChatGPT, DeepSeek, Mistral, or Groq AI—you can generate new content, summarize information, translate text, and leverage additional functionalities while working on your office files. Furthermore, ONLYOFFICE Docs can be integrated into your existing business platforms, including but not limited to Odoo, Alfresco, Confluence, Pipedrive, Nextcloud, Redmine, and SuiteCRM, through a wide array of integration applications (with over 40 options available). Additionally, you can utilize Docs within the ONLYOFFICE DocSpace, a collaborative platform designed around document teamwork, which comes equipped with the entire online office suite. This allows users to create specific spaces for various projects, invite team members, set access permissions, and collaborate in a manner that suits their needs. With DocSpace, you can not only store, share, and co-edit office files but also engage with external parties, expanding the possibilities of collaboration beyond your immediate team.

ProWritingAid assists businesses in creating higher-quality content, communications, reports, proposals, and various other documents more efficiently. By addressing frequent issues like inconsistent terminology, contextual spelling mistakes, grammatical errors, and subpar style, ProWritingAid enhances overall writing quality. It offers numerous integration possibilities, including APIs and onsite solutions, making it suitable for organizations of all sizes. This versatility is particularly beneficial for those with specific privacy and security needs, ensuring that all users can maintain compliance while improving their written materials. Ultimately, ProWritingAid is a valuable tool for any company aiming to elevate their documentation processes.

Sapling serves as an AI tool designed for customer-oriented departments, seamlessly integrating with messaging platforms and CRMs to help agents craft tailored responses. This innovative platform offers managers valuable conversational insights, enhancing their ability to coach and prepare their teams effectively. With features such as autocomplete, spelling and grammar checks, as well as snippets and text expansion tools, Sapling ensures that communication is both efficient and accurate. Furthermore, its services can be deployed on-premise or in the cloud, catering to various security and privacy needs. The Grammar and Spelling APIs enable the integration of Sapling's advanced language models into bespoke applications and specific use cases. Additionally, the Sapling Suggest feature allows agents to quickly access pertinent answers from a centralized knowledge database, enabling them to respond to customer queries more swiftly by simply clicking on the preferred response. By shifting away from rigid, decision tree-based chatbots, businesses can empower their agents to provide more personalized and effective customer service. This approach not only improves response times but also enhances customer satisfaction, creating a more engaging experience.

Achieve an impressive increase in response rates by 8X by utilizing AI to create personalized emails and LinkedIn messages. By examining the interactions that prospects have on LinkedIn, you can design custom messages that effectively foster engagement. Integrate AI into your cold outreach tactics to streamline your research, cutting the time spent on each lead from 45 minutes to just 15 seconds as AI assists in drafting your emails. This allows for the rapid creation of compelling sales, marketing, or HR communications with a personal touch using only a few clicks. Additionally, by sending LinkedIn connection requests and messages that are tailored to reflect a prospect's activities and backed by AI suggestions, you can further boost your response rates. Utilize AI-enabled sales personalization to enhance your cold outreach responses significantly, with customized LinkedIn messages informed by the insights in prospects' bios. Moreover, leverage your blog content to create hyper-personalized backlink requests and automate your email outreach strategy. With AI-driven personalized communication, you can easily produce emails that resonate with your prospects' online presence, enhancing the effectiveness of your outreach initiatives. By adopting this pioneering strategy, you can revolutionize your approach to connecting with potential clients and significantly improve your overall engagement tactics, leading to greater success in your outreach efforts.

TextGears offers a range of services including translation, paraphrasing, and text verification for numerous businesses worldwide. Clients can access a complimentary demo online. Additionally, the API enables seamless integration of TextGears’ text analysis capabilities into any contemporary software solution. For organizations that prefer to keep their operations within a secure corporate network, on-premise installation is the ideal choice. The platform supports a diverse array of languages such as English, French, German, Portuguese, Russian, Italian, Arabic, Spanish, Japanese, Chinese, and Greek, ensuring accessibility for a global audience. This broad language support enhances TextGears' utility for companies engaging with international clients and partners.

Eskritor is a cutting-edge content generation platform powered by AI, designed to help users easily create a wide range of written content, from blog posts to product descriptions, at the click of a button. This tool is especially advantageous for students, enabling them to rapidly complete their assignments by generating clear sentences, concise summaries, or even comprehensive paragraphs in considerably less time. Thanks to its adaptable AI capabilities, Eskritor can produce various types of content, such as captivating social media updates, persuasive landing page copy, and insightful blog articles, thus reducing the burden on marketing teams. Moreover, Eskritor assists e-commerce professionals in crafting convincing marketing texts and elaborate product descriptions, with the ability to generate customized content suitable for any niche, topic, or industry. With the use of this innovative tool, businesses can significantly improve their online visibility while making their content creation processes more efficient and less time-consuming. Ultimately, Eskritor empowers users to focus on their core activities by taking care of the writing, allowing for greater creativity and productivity in their respective fields.

ChatLabs is an innovative platform that integrates top-tier AI models into a cohesive and efficient user experience. It offers a wide array of functionalities, including conversational agents, writing assistance, web searching, and the creation of impressive artwork. With tools like GPT-4, Claude Opus, Gemini, or Llama 3 at your fingertips, you can choose the most suitable AI for each specific task. The platform features customizable AI assistants, providing you with the freedom to explore endless possibilities. You have the option to utilize our ready-made assistants or personalize them according to your unique requirements, with only your creativity serving as a boundary. Additionally, our AI Prompt Library is designed to help you keep your most frequently used prompts organized, allowing for quick and easy access whenever you need them. Moreover, the advanced AI tools available for art and image creation, such as FLUX.1, DALL.E 3, and Stable Diffusion 3, enable you to produce breathtaking visuals, whether for personal projects or professional endeavors, showcasing the limitless potential of your artistic vision.

Are you interested in editing text seamlessly without the hassle of toggling between different applications? Our text editor provides all the essential features for an efficient workflow, including syntax highlighting, compatibility with various word processors, and integration with Figma, ensuring a streamlined experience for users.

Leverage the power of specialized models to achieve a competitive advantage in your industry. By utilizing our cutting-edge enterprise Gen AI framework, you can move beyond traditional constraints and assign routine tasks to powerful assistants instantly – the opportunities are limitless. Furthermore, for organizations that emphasize data security, you can tailor and deploy generative AI solutions in your private cloud environment, guaranteeing safety and confidentiality throughout the entire process. This approach not only enhances efficiency but also fosters a culture of innovation and trust within your organization.